Sort the following phrases as descriptions of alpha helices, beta turns or all alpha Helices 1st residue hydrogen- bonded to 5^th residue (that is, residue n is H- bonded to residue n + 4) all - NH groups point in the same direction Beta Sheets successive R groups point in opposite directions Beta Turns 1^st residue (that is, residue n is H- bonded to residue n+3 All contains-NH hydrogen bonded to C = O

Answers

Answer 1

An alpha helix is a type of secondary structure in proteins. It is a right-handed, coiled-coil structure that is stabilized by hydrogen bonds between the peptide backbone amide nitrogen and carbonyl oxygens of every fourth residue.

1st residue hydrogen-bonded to 5th residue (that is, residue n is H-bonded to residue n+4) - Alpha Helix

All NH groups point in the same direction - Beta Sheet

successive R groups point in opposite directions - Beta Sheet

1st residue (that is, residue n is hydrogen bonded to residue n+3) - Beta Turn

All contains-NH hydrogen bonded to C=O - Alpha Helix

In summary, the first phrase describes an Alpha Helix, the second and third phrases describe Beta Sheets, and the fourth phrase describes a Beta Turn, the fifth phrase also describes an Alpha Helix.

Learn more about Alpha Helix here:

https://brainly.com/question/14465166

#SPJ4


Related Questions

regardless of where you live and what tempurature it is outside, you should always start the vehicle and give it a few minutes to warm up

Answers

The statement given is true. No matter where you live or what the outside temperature is, you should always start your vehicle and let it warm up for a few minutes.

Define temperature.

An object's thermal energy content is measured by its temperature, while heat is the movement of thermal energy between objects of different temperatures.

The average kinetic energy of all the atoms or molecules that make up matter defines temperature in chemistry. Not all materials have the same kinetic energy. A particle can be described using the kinetic energy distribution of the particle at a point in time.

To know more about temperature visit:

https://brainly.com/question/28458734

#SPJ4

The complete question is as follows:

Regardless of where you live and what temperature it is outside, you should always start the vehicle and give it a few minutes to warm up. (True/False)

A chemist is studying the composition of a sample of ocean water. He gently heats the sample to evaporate the water, leaving him with the solid substances that had been dissolved in the sample. Next, he performs a series of procedures to separate the solid substances from each other. Finally, he measures how much of each solid he has obtained. What substance would he probably have the most of

Answers

The substance that he will have the most will be sodium chloride.

More than 70% of the surface of the Earth is covered by seawater, the liquid that makes up the oceans and seas. 96.5 percent of seawater is made up of pure water, 2.5 percent salt, and minor amounts of dissolved inorganic and organic compounds, particles, and a few atmospheric gases.

When a chemist analyzes the composition of a sample and heats it to cause the water to evaporate, he is left with the solid substances that had been dissolved in the sample. Sodium chloride is the most significant salt that is created by ocean water. He next goes through a series of steps to separate the solid materials from one another. The highest substance found in ocean water, according to his measurements, is salt, specifically sodium chloride.

Learn more about sodium chloride

brainly.com/question/9811771

#SPJ4

Which of the following could account for the weakening of hurricanes when they reach the Atlantic Ocean? Ocean waters in the Atlantic . .

A.) decrease in temperature.
B.) increase in temperature.
C.) decrease in salinity.
D.) increase in salinity.

Answers

A decrease in temperature could account for the weakening of hurricanes when they reach the Atlantic Ocean. hence option A is the correct answer.

How is Hurricane formed?

There must be warm ocean water and wet, humid air in the area for one to form. When humid air flows upward at a low-pressure zone over warm ocean water, water is released from the air, resulting in storm clouds. The air in a hurricane rotates as it rises.

Hurricanes begin with the evaporation of warm seawater, which causes water to be pumped into the lower atmosphere. When converging winds collide and turn upwards, this humid air is pulled aloft.

Hurricanes arise when warm, moist air rises over sea. Cooler air replaces the rising air. Large clouds and thunderstorms continue to form as a result of this process. Because of the Coriolis Effect, these thunderstorms continue to expand and begin to rotate.

Learn more about Hurricane here:

https://brainly.com/question/18221136

#SPJ1

What percentage of alpha-linolenic acid (ALA) converts to a biologically available form called eicosapentaenoic acid (EPA)

Answers

Alpha-linolenic acid (ALA) is an essential omega-3 fatty acid that is found in certain plant oils, such as flaxseed and canola oil, and in some nuts and seeds. It is considered an essential fatty acid because the body cannot produce it and it must be obtained through the diet.

Eicosapentaenoic acid (EPA) is a biologically available form of omega-3 fatty acid that can be produced from ALA through a series of metabolic processes. The percentage of ALA that converts to EPA in the body varies depending on a number of factors, such as individual genetics, dietary factors, and overall health.

On average, the conversion rate of ALA to EPA is relatively low, with estimates ranging from 0.1-9% in healthy adults. The exact percentage of conversion is not well-established, but it is believed to be low due to the limited activity of the enzymes involved in the conversion process.

It's also important to note that not all of the EPA produced from ALA will be used by the body, as some of it will be converted to other fatty acids such as docosahexaenoic acid (DHA). The conversion rate of ALA to DHA is even lower, typically less than 0.5%.

It's important to note that some studies show that supplementation with EPA and DHA may be more beneficial for some health outcomes than supplementing with ALA, as these forms of omega-3 are more easily incorporated into cell membranes and have a more direct effect on the body.

Learn more about Omega-3 Fatty Acids here: https://brainly.com/question/30114491

#SPJ4

After watching the 2nd video, select the correct results to fill in the chart below:

what am I doing wrong

Answers

KI - Ionic compound, KCl -Ionic compound,

C₆H₁₂O₆ - Covalent compound, C₆H₄Cl₂ - Covalent compound,  

KNO₃ - Ionic compound, C₆H₅COOH - Covalent compound

CH₃COOH - Covalent compound, Paraffin wax - Covalent compound

HCl - Covalent compound

What are ionic and covalent compounds?

Ionic compounds are formed from the interaction between cation ions and anions. A cation of an atom can be described as an electropositive ion and can donate valence electrons. Similarly, anions of an atom are electronegative ions and can accept electrons.

In an ionic compound, there is a complete transfer of electrons in the formation of an ionic bond, therefore, there exists an electrostatic force of attraction between the ions that forms a strong bond.

In a covalent compound, there is the mutual sharing of electrons in the covalent bonds. The shared electrons are hard to give away as nuclei of two atoms together share the electrons and create a bond stronger.

Learn more about the ionic and covalent compound, here:

brainly.com/question/12144907

#SPJ1

Why is the mass of one mole of carbon (C) less than the mass of one mole Oxygen (O), even though the number of atoms of each element is the same

Answers

Chemistry quizzes What is the mass  of a single carbon atom if a mole of carbon atoms weighs 12 grams. The fact that 1 mole of carbon atoms weighs 12 grams is a given.

There are 6. 022 10 23 atoms in total, or Avogadro's number, in a mole of carbon atoms. As a result, 1 carbon atom weighs 2 10 - 23 g (in grams). The weight of one mole of carbon atoms is 12 g. 12 g to 12 amu. Because we defined the mole to make it so, the atomic mass and molar mass are in agreement. A material can have a variable mass per mole while yet having the same number of particles. Are there any examples you might use to support the claim? In current usage, the term "mole" merely denotes a group of countable items, more specifically the Avogadro number of the entities in question.

To learn more about mole please click on below link

https://brainly.com/question/26416088

#SPJ4

In a titration experiment, a 12.5 mL sample of 1.75 x 10^-2 M Ba(OH) 2 just neutralized 14.5 mL of HNO 3 solution. Calculate the molarity of the HNO 3 solution.

Answers

The number of moles must be equal, the ratio of the molarity of each must be equal to the ratio of the volumes used.

What is experiment?

An experiment is a procedure or set of procedures used to test a hypothesis or explore a cause and effect relationship. It is a scientific method of investigation in which the investigator manipulates one or more independent variables and measures the subsequent effect on one or more dependent variables. Experiments are conducted to answer questions, test theories, and gain insight into cause-and-effect relationships.

The molarity of the HNO 3 solution can be calculated using the equation:
Molarity of HNO3 = (volume of HNO3 * molarity of Ba(OH)2) / volume of Ba(OH)2
Molarity of HNO3 = (14.5 mL * 1.75 x 10^-2 M) / 12.5 mL
Molarity of HNO3 = 1.4 x 10^-2 M
This equation works because the number of moles of HNO3 neutralized by the Ba(OH)2 must be equal to the number of moles of Ba(OH)2 used. The number of moles of each can be determined by multiplying the molarity of each by the volume used, and since the number of moles must be equal

To learn more about experiment
https://brainly.com/question/26150306
#SPJ4

The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely

Answers

The heat of vaporization for water is 40.7 kJ/mol. the heat energy must 150.0 g of water absorb to boil away completely is 6106 kJ.

The expression is given as :

q = m ΔH

where ,

q is heat energy

m is the mass

ΔH is the heat of the vaporization.

q = heat = ?

m = mass  = 150 g

ΔH = heat of vaporization = 40.7 kJ/mol

q = 150 × 40.7

q = 6106 kJ

Thus , if the heat of vaporization is 40.7 kJ/mol ,the heat energy required for 150 g of water absorb to boil away completely is 6106 kJ.

To learn more about heat vaporization here

https://brainly.com/question/24569455

#SPJ4

Openings in the leaves through which gases enter and leave

Answers

Answer:

Stomata

Explanation:

Stomata are epithelial cell structures found in tree leaves and needles that help promote plant growth and exchange carbon dioxide and water with the surrounding environment.

Stomata are tiny holes in the epidermis of leaves.

Stomata allow for gaseous exchange as well (oxygen and carbon dioxide).

Consider the orbital diagram
shown. Which electron rule is
broken in the diagram?
1
1s 2s
2p
A. Aufbau Principle
B. Hund's Rule
C. Pauli Exclusion Principle

Answers

The electron rule is broken in the diagram is: (c) Pauli Exclusion Principle.

What is electron?

An electron is a subatomic particle with a negative electric charge. It is found in atoms, and is the main component of electricity. Electrons are incredibly small, measuring only a fraction of a nanometer, and they are around 2000 times lighter than the smallest atom. Electrons are governed by the laws of quantum mechanics and they are move around the nucleus of an atom in discrete orbits. Electrons are responsible for chemical bonding between atoms, and they are essential for the formation of molecules.

To learn more about electron

https://brainly.com/question/25674345

#SPJ1

How many mol ratios can be obtained from the following chemical equation? Na2s + cd(No3)2 ———-> 2 NaNo3 +cds

Answers

12mol ratios can be obtained .



In chemistry, what is the net ionic equation?

The net ionic equation is a chemical equation that only depicts the elements, compounds, and ions that are directly involved in the chemical process.
As previously stated, we employ net ionic equations to highlight the molecules that change throughout the reaction. It makes it simple to identify the active molecules in a reaction since they are the only ones in the equation.

Fill in the blanks with the balanced molecular equation.
For each substance, write the state (s, l, g, aq).
Break down strong electrolytes into ions (the complete ionic equation).
Remove the spectator ions from both sides of the full ionic equation.



To learn more about mol ratios  to refer:
https://brainly.com/question/29478671
#SPJ1

Question 4

3 pts

Which if the following elements will not reach an octet when in a bond?

Calcium

O Lithium

Magnesium

O Carbon

Ouestion 5

Answers

Lithium has a valence of 1, so it will not usually reach an octet in a bond. It tends to form ionic bonds, in which there is only one electron transfer, rather than two or more which would be required to reach an octet.

What is Lithium?

Lithium is a soft, silver-white metal that is the lightest of all alkali metals. It is a key component in many batteries, and is also used in a variety of other applications. It has a low reactivity, and is relatively stable when exposed to air and water. In its elemental form, Lithium is a highly flammable, corrosive metal that is rarely found in its pure form in nature. It can be found in minerals such as lepidolite and spodumene, and is commonly mined from salt flats and brine pools.

To learn more about Lithium
https://brainly.com/question/15178590
#SPJ4

How many moles is 1.5 x10 20?

Answers

2.49 x [tex]10^{-4}[/tex] moles is equal to 1.5×[tex]10^{20}[/tex]. The number of moles is equal to the number of molecules divided by Avogadro's number, 6.022×[tex]10^{23}[/tex].

This means that 1.5×[tex]10^{20}[/tex]moles are equal to

1.5×[tex]10^{20}[/tex]/6.022×[tex]10^{23}[/tex]

0.24908×[tex]10^{-3}[/tex]

2.49 x [tex]10^{-4}[/tex] moles.

Avogadro's number: Avogadro's number is a constant used in chemistry to represent the number of atoms or molecules in a mole of a substance. It is equal to 6.022 x [tex]10^{23}[/tex]. Or we can say that Avogadro's number is, the number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.02214076 × 1023. The units may be electrons, atoms, ions, or molecules, depending on the nature of the substance and the character of the reaction.

Learn more about moles:

https://brainly.com/question/28037816

#SPJ4

A 15.0-mL sample of 0.100 M Ba(OH)2 is titrated with 0.125 MHCl.
Calculate the pH for different points throughout the titration curve and make a sketch of the curve.

Answers

The pH of a 0.100 M Ba(OH)2 solution is decreased to 6.51 when 15.0 mL of 0.125 M HCl is added. The titration curve of the reaction is a decreasing graph, with the pH decreasing as the volume of the HCl added increases.

Volume of HCl Added (mL) | pH

--------------------------|-----

0.0                   | 12.32

2.5                   | 10.98

5.0                   | 9.81

7.5                   | 8.79

10.0                  | 7.94

12.5                  | 7.18

15.0 (endpoint)       | 6.51

The pH of a 0.100 M Ba(OH)2 solution is decreased to 6.51 when 15.0 mL of 0.125 M HCl is added. The titration curve of the reaction is a decreasing graph, with the pH decreasing as the volume of the HCl added increases.

learn more about solution here

https://brainly.com/question/7932885

#SPJ4

Indicate whether each of the following molecules is capable of geometrical (cis-trans) isomerism. Check all that apply. O 1,3-dichloro-2-butene O 1,4-dichlorobenzene O 1,1-dichloro-1-butene O 4,5-dimethyl-2-pentyne

Answers

1,3-dichloro-2-butene and 1,1-dichloro-1-butene.Geometrical isomerism, also known as cis-trans isomerism, occurs when a molecule has two or more  structural isomers that differ in the spatial arrangement of the atoms.

Cis-trans isomerism is only possible when the molecule has at least one carbon-carbon double bond. In this type of isomerism, the two isomers differ in the orientation of the substituent groups around the double bond.  1,3-dichloro-2-butene and 1,1-dichloro-1-butene both contain a carbon-carbon double bond and are therefore capable of geometrical isomerism. 1,4-dichlorobenzene does not contain a carbon-carbon double bond and therefore is not capable of geometrical isomerism. 4,5-dimethyl-2-pentyne also does not contain a carbon-carbon double bond and is therefore not capable of geometrical isomerism.

learn more about isomerism here

https://brainly.com/question/14015257

#SPJ4

how many liters of a 60% acid solution must be mixed with a 15% acid solution to get 360 L of a 50% acid solution

Answers

x + (360 - x) = 360 * 0.50

where x is the amount of the 60% acid solution.

Solving for x, we get: x = 360 * 0.50 - 360 x = 180

Therefore, you will need to mix 180 L of the 60% acid solution with 180 L of the 15% acid solution to get 360 L of a 50% acid solution.

What is acid?

Acid is a substance that has a pH level of lower than 7.0 and is capable of corroding or dissolving other substances. It is usually found in aqueous solutions and is a highly reactive substance. Examples of acid include sulfuric acid, hydrochloric acid, nitric acid and acetic acid. These are used in a variety of industries such as food production, industrial cleaning and chemical engineering.

To learn more about acid
https://brainly.com/question/26855500
#SPJ4

if a researcher wanted to temporarily denature a protein but wanted to be sure it would refold, which of the following methods or substances would be most appropriate

Answers

If a researcher wanted to the temporarily denature a protein but wanted to be sure it would refold, the method or the substances would be most appropriate is the urea.

The denature is defined as the process of the modification of the molecular structure of the protein. In this method it involves the breaking of the many weak linkage or the bonds in the protein molecules. It is responsible for highly ordered of the structure of the protein in the natural of state.

Thus, the urea is the appropriate substances , if the researcher wanted to the  temporary denature the proteins.

To learn more about denature here

https://brainly.com/question/14580687

#SPJ4

You have been given a transparent liquid that could be a solution or a colloid. What is the test you
can perform to confirm which type of mixture it is? What is the technical name for this test?

Answers

Answer: Filterability Test

Explanation: This involves filtering the liquid through a filter paper to see if the particles pass through or are retained on the paper. If the particles pass through, the liquid is likely a solution. If the particles are retained, the liquid is likely a colloid. The technical name for this test is the separation test.

Answer:

One way to determine whether a transparent liquid is a solution or a colloid is to use the Tyndall effect. The Tyndall effect, also known as the Tyndall scattering, is a phenomenon that occurs when a beam of light passes through a colloidal system (a mixture in which one substance is dispersed evenly throughout another). When this happens, the light is scattered by the particles in the colloidal mixture, causing the mixture to appear hazy or cloudy. In contrast, if the transparent liquid is a true solution (one in which the solute is completely dissolved in the solvent), the light will pass through it without being scattered, and the solution will appear clear.

To perform the Tyndall effect test, you would need a light source (such as a flashlight or a laser pointer) and a dark room or area. Place the transparent liquid in a clear container, and shine the light through it. If the light is scattered by the particles in the mixture, it will be visible as a bright beam or spot on the opposite side of the container. If the light passes through the mixture without being scattered, it will appear as a continuous, unbroken beam.

There are other tests that can be used to distinguish between solutions and colloids, such as the filterability test and the centrifugation test. However, the Tyndall effect test is one of the most straightforward and reliable methods for making this distinction.

Explanation:

draw a diagram of the structure of the following atoms and state their electron arrangement:

(i) Mg
(ii)Ca

Answers

The diagrams of the arrangement of the electrons in calcium and magnesium have been shown in the image attached to this answer. There are two electrons in the valence shell of calcium.

How are the electrons arranged?

We know that the electrons are the subatomic particles that we can be able to see in the shells of the atom. It is important that we ought to know that the electrons are the particles that are known to be responsible for the reactivity of the atom.

The number of the electrons that we can find in the atom would depend on the number of the protons that we have in the nucleus of the atom and this is because for the atom to be electrically neutral then we would have to have the same number of electrons and protons being in the atom as we know.

It is clear that calcium is a member of group two of the periodic table and that magnesium is also a member of group two of the periodic table.

The structures for calcium would have Ca and two dots while that of magnesium would have Mg and two dots.

Learn more about periodic table:https://brainly.com/question/11155928

#SPJ1

Which of thee would NOT
be conidered a biome?
A. A region that ha everal grouping of
the ame plant communitie. B. A region that ha everal grouping
of the ame animal communitie. C. A mall habitat that contain it own
ecoytem (uch a a tree tump). D. A large area of the Earth that ha a
imilar climate

Answers

A large area of the Earth that has a similar climate is not considered a biome.

Hence, option D is correct.

Scientists can identify a biome by defining the range of temperatures, the kind of soil, the amount of light, and the amount of water that are distinctive to that location. These factors create niches for particular species.A biome is a community made up of all the habitats in a given region and climate, whereas a habitat is the place where a group of one type of organism (a population) resides. Different creatures live in many types of biomes.

Scientists disagree on the exact number of biomes that exist on earth, therefore we will focus on the six most significant ones: freshwater, marine, desert, forest, grassland, and tundra.

To know more about biome here

https://brainly.com/question/1930321

#SPJ4

2. Explain the relationship between the key terms in
each of the following pairs.
a. direct pressure and indirect pressure
b. goal and action plan

Answers

If someone who look up to does anything that makes you want to do something, this is known as direct pressure directly from the other person's mouth. The plan you use to accomplish the goal it your activity.

Describe pressure.

The Standard unit for pressures seems to be the pascal (Pa), which is equal to one newton / square meter (N/m2) of pressure is defined of surface. An object's pressure is inversely related to its force and proportional to both

Why does pressure exist?

Pressure is created by molecules moving quickly and crashing into the container's walls. The quantity and intensity of molecular collisions in a given region determine the pressure there.

To know more about pressure visit:

https://brainly.com/question/18107358

#SPJ1

The amount of atomic particles released by a radioactive material in a specific time is determined by strong and weak nuclear forces. strong and weak gravitational forces. attraction and repulsion caused by electric forces. attraction and repulsion caused by magnetic forces.

Answers

The amount of atomic particles released by a radioactive material in a specific time is  determined by strong and weak nuclear forces option- 1 is correct.

What exactly do you mean by radioactive materials?

Radioactive materials fall under the category of radionuclides, which are chemicals with unstable atomic nuclei. They adjust the nucleus to stabilize themselves (spontaneous fission, emission of alpha particles, or conversion of neutrons to protons or the reverse).

The amount of atomic particles released by a radioactive material over a given period of time depends on how quickly it decays.

The weak nuclear forces that exist between the nucleons of atomic particles control how quickly radioactive materials decay over time.

The nuclear forces can therefore be used to calculate the total number of atomic particles that a radioactive material releases in a given period of time (strong or weak).

To know more about radioactivity visit:

https://brainly.com/question/7180704

#SPJ4

lead is a well known heavy metal with a density of 11.53 g/cm^3. what would be the volume of lead if you are given a 0.255 pound sample? (dimensional analysis)

Answers

Since lead has a density of 11.53 g/cm^3, the volume of a 0.255 pound sample of lead is equal to 10.03 cm³.

What is density?

In Science, the density of a chemical substance such as lead can be calculated by using this formula:

Density = M/V

Where:

M represents the mass of a chemical substance or physical object.V represents the volume of a physical substance or object.

Next, we would convert the value of the mass in pound to grams by multiplying it by 453.6 as follows;

Mass = 0.255 × 453.6

Mass = 115.668 grams

Making volume the subject of formula, we have:

Volume = Mass/Density

Volume = 115.668/11.53

Volume = 10.03 cm³.

Read more on density here: brainly.com/question/14035509

#SPJ1

The electron-domain geometry of the AsF6- ion is octahedral. The hybrid orbitals used by the As atom for bonding are ________ orbitals.

Answers

The AsF6- ion has an octahedral electron-domain shape. Sp3d2 orbitals are the hybrid orbitals that the As atom utilizes for bonding.

The octahedral geometry of AsF6-. All six fluorine atoms are sp3d2 hybrid orbitals with the central arsenic atom, and they all form 90° and 180° bond angles in an octahedral geometry. Arsenic(As), with atomic number 33, is the main atom in the AsF6-. Configuration of the formula As(33)=[Ar]3d104s24p3. As a result, As' valence shell contains five electrons. It can therefore create five single bonds with a fluorine atom and one more single bond with a fluorine atom as a result of one negative charge. Consequently, there are six bond pairings in total.

To learn more about orbitals click here https://brainly.com/question/18914648

#SPJ4

Which of the following is a molecular compound that produces H+ ions when dissolved in water?
a. H2SO4
b. Hg(NO3)2
c. CH4
d. NaC2H3O2

Answers

Option - a is correct answer, H₂SO₄ is a molecular compound that produces H⁺ ions when dissolved in water.

What constitutes a molecular compound example?

Molecule-shaped inorganic substances are known as molecular compounds. Examples include common compounds like water (H₂O) and carbon dioxide (CO₂). When compared to ionic compounds like sodium chloride, these compounds are very different (NaCl).

Molecules that have a formula that reflects the number of atoms actually bound together in the molecule make up a molecular compound. The bonds between the atoms are joined to form a distinct shape, which is determined by the bond lengths and angles.

Acid produces proton when there is water present.

H₂SO₄ + H₂O → H₃O⁺ + HSO₄⁻

To know more about molecular compound visit:

https://brainly.com/question/23088724

#SPJ1

 (Question) How many atoms are in 3 grams of Cu?
(20 points)

Answers

3 grams of Cu = 6.022 x 10^23 atoms of copper.

Answer:

2.84 × 10^22 atoms

Explanation:

To calculate the number of atoms in 3 grams of Cu, we can use avogadro's constant where:

[tex]1 \: mole = 6.02 \times 10 {}^{23} \: atoms[/tex]

Firstly, we have to calculate the number of moles in 3 grams of Cu. The formula to calculate moles is:

[tex]moles = \frac{mass}{molar \: mass} [/tex]

the mass = 3g and the molar mass = 63.55 (this value can be found in the periodic table)

Substitute the values in formula:

[tex]moles = \frac{3}{63.55} [/tex]

[tex]moles = 0.0472[/tex]

Now use the number of moles to convert to atoms using avogadro's number, where x is the unknown number of atoms we want to find:

[tex]1 \: mole : 6.02 \times 10 {}^{23} \: atoms[/tex]

[tex]0.0472 \: moles : x \: atoms[/tex]

Cross multiply and equate to solve for x:

[tex]1 \times x = 6.02 \times 10 {}^{23} \times 0.0472[/tex]

[tex]x = 6.02 \times 10 {}^{23} \times 0.0472[/tex]

[tex]x = 2.84 \times 10 {}^{22} \: rounded \: to \: 3sf[/tex]

Hence, there are 2.84 × 10^22 atoms in 3 grams of Cu

Order each of the sets of compounds with respect to Sy2 reactivity (1 = fastest). A. CI B. H2C=CHCH2CI C. CI
Compound A Compound B

Answers

The order of Sy2 reactivity for the sets of compounds you provided would be:

Compound B (H2C=CHCH2CI)

Compound C (CI)

Compound A (CI)

This is because Compound B has the greatest electron-donating ability due to the presence of the alkyl group attached to the carbon bearing the halogen, making it the most nucleophilic and therefore the most reactive in an Sy2 reaction. Compound C is less reactive than B because it lacks the electron-donating alkyl group, and Compound A is the least reactive due to the lack of electron-donating groups.The term "Sy2 reactivity" refers to the reactivity of a compound in a nucleophilic substitution reaction where the leaving group is displaced by a nucleophile. The abbreviation "Sy" stands for "substitution" and the subscript "2" indicates that the reaction is bimolecular, meaning that the rate of the reaction is dependent on the concentrations of both the substrate and the nucleophile.

To learn more about sets of compounds here:

https://brainly.com/question/14117795

#SPJ4

Increasing the amplitude means you are increasing the ___ of a wave.

A)wavelength

B)wave speed

C)frequency

D)energy

Answers

Increasing the amplitude means you are increasing the energy of a wave option -D is correct answer.

Just what is amplitude?

The distance between the wave's base and its crest is its amplitude. It represents the furthest the vibrating body has traveled.

As the vibration of the sound particles increases, the amplitude length also grows. The intensity and energy of the sound particle particles increase as a result. The sound is louder as a result of the increased energy.

The energy increases with increasing amplitude. In conclusion, waves carry energy. Their frequency and amplitude are related to the amount of energy they carry. Energy increases with frequency and amplitude, respectively, as they both rise.

To know more about amplitude visit:

https://brainly.com/question/21037362

#SPJ4

What happens to the reactivity as you move from left to right?

Answers

The reactivity of the element in the periodic table as me move from the left to right in the period it will decreases first and then it will increases.

In the periodic table , for the metals the reactivity of the decreases as we move across the period from left to the right. in the group it will increases as we move from the top to bottom.

In the periodic table for the non metals, the reactivity will increases as we move from left to the right in a period. in the group it will decreases as we move from top to the bottom.

To learn more about reactivity here

https://brainly.com/question/29788210

#SPJ4




A vitamin supplement was found to weigh 900 mg. It contained 50. 51% fluorine, and the remaining amount was iron. What mass of each element could be recovered from this vitamin?

Answers

A vitamin supplement is a dietary supplement containing one or more essential vitamins, typically in the form of a pill, capsule, or tablet.

What are Vitamins?

Vitamins are a group of organic compounds that are essential for normal cellular functioning. They are required for a wide range of bodily functions, such as metabolism, growth, development, and immunity. They can be found naturally in food sources or taken as dietary supplements. There are 13 essential vitamins, including vitamins A, C, D, E, K, and the B vitamins.

The mass of fluorine that can be recovered from the vitamin is 455.9 mg (50.51% of 900 mg). The mass of iron that can be recovered from the vitamin is 444.1 mg (the remaining amount of 900 mg).

To calculate this, we need to use the percent composition formula:

Mass of Element = (Percent Composition/100) x Total Mass

Mass of Fluorine = (50.51/100) x 900 mg = 455.9 mg

Mass of Iron = (100 - 50.51)/100 x 900 mg = 444.1 mg.

To know more about vitamins,

https://brainly.com/question/9348916

#SPJ4

Other Questions
A watch increased in price by 4/5. After the increase it was priced at 126. What was the original price of the watch? You have a pitcher that holds 35.2 oz. of iced tea. If each glass holds 8.8 ounces, how many glasses can you completely fill? Andrea purchased an Apple iPad and an extended warranty. She also purchased a gaming application specially developed for Apple iPad. The application purchased by Andrea, is an example of a(n) _____ product. Is N2 equal to Avogadro's number? help help help help help help help The volume of the balloon is 14 000 cmThe density of the helium in the balloon is 0.180 kg/mCalculate the mass of helium in the balloon1 cm = 1 x 10-6 m What is the example of social and cultural innovation? A doctor who is monitoring the health of astronauts in space has just received a signal that indicates one ofthe astronauts may be experiencing low blood sugar. The mission control personnel that would communicatethis to the astronaut on board the space craft is CAPCOM.TrueFalse What is the size of the augmented matrix for the linear system? How can Accenture's sustainable software engineering help meet sustainability? write a summary 6-7 sentences on how cell phones work (include the EM spectrum and radio waves in your answer. If LaL turns into a gel when exposed to a sample, it means the sample is contaminated with gram-negative bacteria The invasion of _________ by Germany resulted in WW II. during a lunch seminar chocolate caramel and strawberry toppings were available how many two-topping Which statements would be considered appropriate interventions for a client with an endotracheal tube A dieter whose weight falls below his or her set point is likely to experience a(n)A. decrease in hunger and an increase in metabolic rate.B. increase in hunger and an increase in metabolic rate.C. decrease in hunger and a decrease in metabolic rate.D. increase in hunger and a decrease in metabolic rate. How do the angles and sides of the outline correspond to the angles and sides of the original triangle? What is the role of the parents in drug prevention? I am a non-volatile type of built-in memory. I store my contents long-term. My job is to store critical programs that the computer needs to access in order to boot up. What am I PLEASE HELP 25 POINTS [1] After earning a few dollars working on my brother-in law's farm near Portage [Wisconsin], I set off on the first of my long lonely excursions, botanising in glorious freedom around the Great Lakes and wandering through innumerable tamarac and arbor-vitae swamps, and forests of maple, basswood, ash, elm, balsam, fir, pine, spruce, hemlock, rejoicing in their bound wealth and strength and beauty, climbing the trees, revelling in their flowers and fruit like bees in beds of goldenrods, glorying in the fresh cool beauty and charm of the bog and meadow heathworts, grasses, carices, ferns, mosses, liverworts displayed in boundless profusion.[2] The rarest and most beautiful of the flowering plants I discovered on this first grand excursion was Calypso borealis (the Hider of the North). I had been fording streams more and more difficult to cross and wading bogs and swamps that seemed more and more extensive and more difficult to force one's way through. Entering one of these great tamarac and arbor-vitae swamps one morning, holding a general though very crooked course by compass, struggling through tangled drooping branches and over and under broad heaps of fallen trees, I began to fear that I would not be able to reach dry ground before dark, and therefore would have to pass the night in the swamp and began, faint and hungry, to plan a nest of branches on one of the largest trees or windfalls like a monkey's nest, or eagle's, or Indian's in the flooded forests of the Orinoco described by Humboldt.[3] But when the sun was getting low and everything seemed most bewildering and discouraging, I found beautiful Calypso on the mossy bank of a stream, growing not in the ground but on a bed of yellow mosses in which its small white bulb had found a soft nest and from which its one leaf and one flower sprung. The flower was white and made the impression of the utmost simple purity like a snowflower. No other bloom was near it, for the bog a short distance below the surface was still frozen, and the water was ice cold. It seemed the most spiritual of all the flower people I had ever met. I sat down beside it and fairly cried for joy.[4] It seems wonderful that so frail and lovely a plant has such power over human hearts. This Calypso meeting happened some forty-five years ago, and it was more memorable and impressive than any of my meetings with human beings excepting, perhaps, Emerson and one or two others. When I was leaving the University, Professor J.D. Butler said, "John, I would like to know what becomes of you, and I wish you would write me, say once a year, so I may keep you in sight." I wrote to the Professor, telling him about this meeting with Calypso, and he sent the letter to an Eastern newspaper [The Boston Recorder] with some comments of his own. These, as far as I know, were the first of my words that appeared in print.[5] How long I sat beside Calypso I don't know. Hunger and weariness vanished, and only after the sun was low in the west I splashed on through the swamp, strong and exhilarated as if never more to feel any mortal care. At length I saw maple woods on a hill and found a log house. I was gladly received. "Where ha ye come fra? The swamp, that awfu' swamp. What were ye doin' there?" etc. "Mony a puir body has been lost in that muckle, cauld, dreary bog and never been found." When I told her I had entered it in search of plants and had been in it all day, she wondered how plants could draw me to these awful places, and said, "It's god's mercy ye ever got out."[6] Oftentimes I had to sleep without blankets, and sometimes without supper, but usually I had no great difficulty in finding a loaf of bread here and there at the houses of the farmer settlers in the widely scattered clearings. With one of these large backwoods loaves I was able to wander many a long wild fertile mile in the forests and bogs, free as the winds, gathering plants, and glorying in God's abounding inexhaustible spiritual beauty bread. Storms, thunderclouds, winds in the woodswere welcomed as friends.The words that Muir uses in his essay reveal that he relates to nature as a(n)Group of answer choicesemotional professorobjective notetakerpassionate observerremoved reporter