you gently shake an amine, a carboxylic acid, and a phenol in a separatory funnel with ethyl acetate and aq naoh. which one of the following will be true?

According to the theory, cancer drugs delivered by nanoparticles could function as biological missiles that attack tumors with the least possible harm to healthy organs.

Nanomaterials are made up of organic or semiconducting particles, non-metal atoms, and metal atoms. "Nanomedicine" refers to the capacity of nanotechnology to influence medicine. Doctors will be able to diagnose and treat patients suffering from a variety of illnesses using nanomedicine.

There is growing hope that the use of nanotechnology in dentistry and medicine will result in significant improvements in disease detection, therapy, and prevention. A brand-new discipline called nanomedicine is emerging as a result of escalating interest in the potential medical uses of nanotechnology.

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Answer: The amount of heat needed to raise a substance's temperature by one Kelvin per kilogram. The heat needed to raise the temperature of a given substance with known mass can be calculated as follows:

                                      ΔH=mCΔT

ΔH=Amount of heat energy supplied

m=Mass of the substance = 15 g

ΔT=Change in temperature = Tfinal−Tinitial = 250° C - 275.0°C = -25°C

C=Specific heat capacity = 2.02 J/g °C

               ΔH=mCΔT

after putting the given values,

                ΔH= -757.5 J

The formula also shows that heat energy is released (negative value) when the change in temperature is negative, i.e., when the temperature of a substance falls.

After allowing time for photosynthesis, the ¹⁸O-radiolabeled CO₂ will be found in glucose, C₆H₁₂O₆ in the plant.

Photosynthesis is the process by which green plants manufacture their food using the energy of sunlight.

During photosynthesis, plants convert carbon dioxide, CO₂, and water vapor present in the atmosphere to glucose using the energy of the sunlight to power the reactions.

Considering the given research work:

A researcher grew a plant in an illuminated chamber with ¹⁸O-radiolabeled CO₂.

After allowing time for photosynthesis, the ¹⁸O-radiolabeled CO₂ will be incorporated into the glucose produced by the plant during photosynthesis.

The glucose produced is then stored as starch.

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Complete question:

A researcher grew a plant in an illuminated chamber with ¹⁸O-radiolabeled CO₂. After allowing time for photosynthesis, where will the radiolabeled ¹⁸O be found?

A. O₂ in the chamber

B. H₂O in the plant

C. H₂O vapor in the chamber

D. C₆H₁₂O₆ in the plant

Answer:

I don't have how to do that in numerical figures

The amount of iron, in grams, that is needed to completely react with 878.0 g of  [tex]Cl_2[/tex] would be 460.392 grams

Iron (III) chloride is produced by reacting iron with chlorine as follows:

[tex]Fe + Cl_2 --- > FeCl_3[/tex]

The balanced equation of the reaction goes thus:

[tex]2Fe + 3Cl_2 --- > 2FeCl_3[/tex]

The mole ratio of iron to chlorine is 2:3.

Recall that: mole = mass/molar mass

Molar mass of [tex]Cl_2[/tex] = 35.5 x 2

                             = 71 g/mol

Mole of 878.0 g  [tex]Cl_2[/tex] = 878/71

                                 = 12.3662 moles

From the mole ratio, the equivalent mole of Fe from 12.3662 moles  [tex]Cl_2[/tex] will be:

 12.3662 x 2/3 = 8.2441 moles

Mass of 8.2441 mole Fe = mole x molar mass

Molar mass of Fe = 55.845 g/mol

Mass of 8.2441 moles Fe = 8.2441 x 55.845

                                         = 460.392 grams

The numbers in the final multiplication operation have 5 significant figures each. Thus, the significant figure of the final answer will also be 5.

in other words, the amount of iron needed to completely react with 878.0 g of  [tex]Cl_2[/tex] is 460.392 grams.

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The value of correlation Coefficient which measures the strength of the relationship between temperature and the number of soup bowls sold will be - 0.8516.

The correlation coefficient can be described as a statistical measure of the strength of a linear relationship between two variables.

We have the table :

Temperature (°F) ________ Number sold

57 ___________________________ 17

75 ___________________________ 12

43 ___________________________ 20

68 ___________________________ 8

67 ___________________________ 13

Use  technology, Excel or linear correlation calculator; the correlation Coefficient obtained will then be, R = - 0.8516

The negative value gotten shows that there is a negative relationship between temperature and the number of bowls of soup sold.

We can conclude that there is a strong relationship between the two variables because the value of R, is close to - 1.

Therefore, a strong negative correlation exists between temperature and the number of bowls of soup sold.

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The full question is below:

A food truck owner recorded the temperature at noon, in degrees Fahrenheit, and the number of bowls of soup sold during the lunch hour for a random sample of 5 days. The data are sh

following table.

Temperature (degrees Fahrenheit)

Number sold

57

17

75

12

43

20

68

8

67

13

The mean temperature of the sample is 62 degrees Fahrenheit, and the mean number sold is 14. What is the correlation between the temperature and the number sold?

Larger rocks are broken down to form smaller rocks which over time, form the basis for soil is True.

Weathering is the decomposition or dissolution of surface rocks and minerals. When rock is mined rock fragments and minerals are carried away through a process called erosion. Water acids salts plants animals and temperature changes are all factors in weathering and erosion.

The process of breaking down large rocks into smaller pieces and sand is called weathering. The process of breaking down large rocks into smaller pieces and sand is called weathering. Weathering is a term that describes the general process by which surface rocks break down into sediments, clays, soils, and dissolved substances in water. The weathering process usually begins when the crust is lifted by tectonic forces.

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The expected product of the curved arrow mechanism is shown in the image.

By using the curved arrow mechanism, it can be shown that one lone pair or non-bonding electron pair of Oxygen atom attacks the 6th Carbon atom to form one O – C bond. Immediately, the C – O bond between the 6th Carbon atom and the 8th Oxygen atom breaks, and as a result one non-bonding electron pair of the 8th Oxygen atom increases.

For displaying electron transfers between atoms, chemists have created their own convention. The term "curved arrow formalism" or "curved arrow mechanism" refers to this.

The curved arrow's function is to depict the transfer of electrons from one site to another. Movement or migration of electrons occurs from the tail to the head.  The majority of the arrows you'll see have a double-barb at the head that symbolizes the motion of two electrons.

Another technique to track changes in formal charge is with curved arrows:

The atom at the "tail" will formally "lose" one electron due to the donation of a pair of electrons from the "tail," increasing the charge of the atom by one.

Additionally, the atom at the "head" will formally "gain" one electron because two electrons are received at the "head," thereby making the charge negative by 1.

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It can be argued that the decrease in ATP concentration will be larger when using 2-deoxyglucose than when using cyanide.

When cyanide is introduced into the organism, it binds to the cytochrome C oxidase protein in the complex IV of the electron transport chain, inhibiting the entire mechanism and stopping the process of ATP production, thus depriving the organism of the 34 ATP molecules produced.

2-deoxyglucose, on the other hand, is transformed to 2-deoxyglucose-6-phosphate and immediately inhibits the entire glycolysis process so not even the 4 ATP molecules gained through glycolysis and Krebs cycle cannot be acquired, denying the entire 38 ATP molecules to the organism.

However, it should be noted that, while glycolysis is an important mechanism for acquiring NADH and FADH2 needed for ETC, they can be gained through other processes, such as oxidative lipid degradation, and cyanide makes that pathway unusable as well.

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This is a redox reaction where the C₂O₄ is being reduced to CO₂ and the K₂MnO₂ is being oxidized to Mn₂O₂. The overall reaction is the reduction of C₂O₂ to CO₂ and the oxidation of K₂MnO₂ to Mn₂O₂.

Redox (reduction-oxidation) is a chemical reaction that happens when the oxidation states of the substrate change. Losing electrons or raising an element's oxidation state is the process of oxidation. When an element or one of its atoms obtains electrons or experiences a fall in oxidation status, reduction can take place.

There are two types of redox reactions and electron transfers, in which one electron normally goes from the reducing agent to the oxidant. Two terminology that are frequently used to describe this kind of redox reaction are electrode potentials and redox couples. Atom transfer is the transfer of an atom from one substrate to another.

This is a redox reaction.

The half-reactions are:

Oxidation: 3H₂C2O4 + 2K₂MnO₄ → 6CO₂ + 2K₂O + 2Mn₂O₃ + 3H₂O
Reduction: 2MnO₄⁻ + 16H⁺ + 6e⁻ → 2Mn⁺² + 8H₂O

The overall reaction is the sum of the oxidation and reduction half-reactions.

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The information needed to construct a geomagnetic time scale is the age of rocks along the surface earth and  the magnetic direction of rocks along the surface of earth. Thus option C and D is correct.

Geomagnetic time scale is defined as a chronicle of the commencement and duration of the numerous events of magnetic polarity reversal on Earth.

Geologists can give absolute ages to the records of these paleomagnetic anomalies, which are the reversals, to build a geomagnetic time scale. The rock is radiometrically dated, and each stage of reversal is assigned an absolute geologic age.

Thus, the information needed to construct a geomagnetic time scale is the age of rocks along the surface earth and  the magnetic direction of rocks along the surface of earth. Thus option C and D is correct.

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Answer:

 -the age of rocks along the surface earth

- the magnetic direction of rocks along the surface of earth

Explanation:

let me know if that works!

According to the given statement these two changes have in common in Both are only chemical changes.

The correct option is C.

Chemical changes happen when bonds among atoms or molecules are formed, broken, or both. This suggests that a substance is transformed from one with a particular set of characteristics (such melting point, color, flavor, etc.) into one with a different set of characteristics.

The majority of our energy is produced by chemical reactions. Many different types of materials are tested, identified, and analyzed using chemical reactions (such as pool testing kits and forensic tests from TV shows like "CSI").

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Ethane gas, C2H6(g), has a combustion enthalpy of roughly -1.5*103 kJ/mol.

Compared to pure methane, gaseous blends with ethane as a component have higher thermal efficiency and shorter combustion times.

This can be accomplished by calculating the difference between the mass of the fuel before and after the water has heated. Calculate how much energy is released by one mole of the material. By dividing by 1000, you may obtain the answer in KJ. This gives you the J/mol-1.

The amount of H in a reaction is determined by the physical states of the reactants and products (gas, liquid,).

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Answer: The substances that are insoluble in water and do not conduct electricity are made up of nonmetal atoms.

Explanation:

Following are the answers related to traits of genes.

Gene pool as a whole is characterized by the term "genotype," which roughly refers to an organism's genetic make-up. The term can also be used in a more precise sense to refer to the several alleles, or variations of a gene, that an organism possesses.

A person can be recognized by their phenotypes, which include things like height, eye color, and blood type. A person's phenotype is influenced by both their genotype (genotype) and environment.

refers to a trait that develops more frequently than another trait due to interactions between gene alleles.

a trait that is only present in homozygous genotypes; a trait that is frequently concealed by other inherited characteristics but persists in a population of heterozygous genotypes.

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Two isotopes of the FAKE element Sz, Average mass of  Seabreezium is equal to 199.77625 amu.

Given that Two isotopes of of Sz is given as :

Seabreezium-71 75%

Seabreezium - 76 25%

Now,

Isotopes of Seabreezium is given as:

Now,

 1st isotope = 71 75% of 271

                    = 194.44amu

  2nd isotope = 76 25% of 269

                       = 205.11 amu

Now,

Average Mass of Seabreezium = 205.11 + 194.44/2

 Average Mass of Seabreezium = 199.77625 amu

Thus, from the above conclusion we can say that, Average mass of  Seabreezium is equal to 199.77625 amu.

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a. The number of moles = 0.154 moles and number of ions =2.78x10²³ ions.

b. The number of moles= 2.18x10⁻⁴ moles and number of ions = 6.56x10²⁰ ions.

c.  The number of moles= 0.0147 moles and number of ions = 1.77x10²² ions .

Calculation of the no of moles and no of ions:

A. Moles MgCl₂:

According to question

88mL = 0.088L * (1.75mol / L) = 0.154 moles MgCl₂

By using (Avogadro's number:)

So,

0.154mol  *(6.022x10²³ molecules / 1 mol) = 9.27x10²² molecules.

Since 1 molecule of MgCl₂ contains 3 ions:

So,

Ions = 2.78x10²³

B. Moles Al₂(SO₄)₃:

( Aluminum sulfate , molar mass = 324.15g/mol:)

So,

0.321L * (0.22g Al₂(SO₄)₃ / L) * (1mol / 324.15g) = 2.18x10⁻⁴ moles.

Now,

1 molecule contains 5 ions:

So,

2.18x10⁻⁴ moles  *(6.022x10²³ molecules / 1 mol) * 5 = 6.56x10²⁰ ions.

C. Since

8.83x10²¹ formula units of CsNO₃ = Number of molecules. Ions are:

So,

8.83x10²¹ * 2 = 1.77x10²² ions

And moles are:

8.83x10²¹ Formula units * (1mol /  6.022x10²³) = 0.0147 moles

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The correct (R) or (S) designations for stereocenter carbons are as follows: (S) is the organic substrate, and (P) is the organic product (R).

The substrate is designated as S the reaction's result as R. As a result. The SN2 reaction's mechanism can be summed up as follows: This nucleophilic substitution process only requires one step.

Due to the involvement of two reactants in the step that determines the rate, the reaction is referred to as the SN2 reaction.

The electrophile is attacked by the nucleophile in the reaction's mechanism, causing a transition phase in which the electrophile's alkyl group leaves and the nucleophile forms a new bond with the substrate that is still present.

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Empirical formula of the compound of bromine and fluorine is used to make UF₆ is Brf₃.

The compound contains 58.37% of Bromine.

For simplicity, let us assume that the mass of the compound made up of bromine and Fluorine is 100g.

Now the contents of Bromine and fluorine in the compound are 58.37g and 41.63g.

To find the empirical formula of the compound. we have to follow the certain set of rules.

Step1. Calculating the number of moles of each and every element present in the compound.

Mole = Given mass/molar mass

mole of Br = 58.37/79.9

moles of Br = 0.73 moles.

and

moles of F = 41.63/19

mole of F = 2.19 moles.

Step2. Calculating the molar ratios of each and every compound.

molar ratio is calculated by dividing the moles of all element with moles of element with least moles

Molar ratio of Br = 0.73/0.73 = 1

Molar ratio of F = 2.19/0.73 = 3

Step3. Making the molar Ratio itself the number of atom of that element in the compound.

Here, 1 atom of Br and 3 atoms of F.

So, the empirical formula is BrF₃.

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Answer:

Not sure why the 3s are on the top, unless they are charges.

But the answer is: 2HNO3 + CaCO3 → Ca(NO3)2 + H2O + CO2

Explanation:

No, they won't be at the same temperature because a larger object needs to be at a lower temperature than a smaller object in order for them to have the same total amount of thermal energy.

Thermal energy can be seen in the boiling of water on a stove. When a substance's atoms and molecules vibrate more quickly as a result of a rise in temperature, thermal energy is created.

Although thermal energy doesn't exert force in the sense of a push or a pull, it does produce particle movement in an item or system. When high thermal energy particles come into contact with another object, they cause the object to move more and perform work as a result.

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Ferrous fumarate: medicine to treat iron deficiency anaemia - NHS.

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The question requires us to order the steps given in a way that they properly represent how to prepare and label a solution.

To prepare a solution from a solid solute, we must calculate the amount of solute and solvent necessary, weigh the mass of solute and add it to a proper flask, add enough water to prepare the solution (as previously calculated) and then correctly label the solution with its molarity.

Considering the steps given and the information above, and also taking into consideration that all possible answers allow only three steps, we can choose the following order:

1) "calculate and mass the number of grams of solute needed, add to flask" (V)

2) "add enough water to make the total necessary volume of solution" (VI)

3) "label the solution with the correct molarity" (I)

Therefore, this is the order of steps to prepare the solution: V - VI - I

The best option to answer this question is the third one (letter C).

the answer would be V,VI,I

Answer:

118.71 u

Explanation:

Tin. Tin is a chemical element with the symbol Sn (for Latin: stannum) and atomic number 50. It is a main-group metal in group 14 of the periodic table.

Source: https://en.m.wikipedia.org/wiki/Period_5_element#:~:text=Tin,-Main%20article%3A%20Tin&text=Tin%20is%20a%20chemical%20element,14%20of%20the%20periodic%20table.

No, it cannot be held under the controlled experiment example. This is because the dependent variable is where we test the poison and the independent variable is the choice of valid poison.

Also, according to the definition of a controlled experiment all experiments are controlled experiments when factors other than the independent variables are held constant. But as you can see here the dependent variable is different.

Also, in this experiment, one drug was placed on the kitchen counter and another was placed on the doorstep. Kitchen counters can attract more odors from food/sweets than front doors so it's clear that both toxins aren't given an equal chance. And this may result in more ants getting trapped and dying from the poison on your kitchen counter, and fewer ants on your front door regardless of effectiveness.

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The heat required to vaporize this sample at standard pressure is 113,270 J.

We can calculate the amount of heat (Q) needed to vaporize 50.0 grams of water by using water's heat of vaporization (q) at 100 °C (boiling point of water) - 40.8 kJ/mol, and the number of moles of water (n).

Q = n * q

The heat of vaporization describes the amount of energy needed to be introduced to a single mol of water at 100 °C to break the intermolecular interactions between molecules of water so it changes to a gaseous state.

To calculate the number of moles of water, we are going to use the mass of water (m = 50.0 g) and its molar mass (M = 18.01 g/mol):

n = m/M

n = 50.0 g / 18.01 g/mol

n = 2.7762 mol

Now we can calculate the amount of heat needed:

Q = 2.7762 mol * 40.9 kJ/mol

Q = 113.27 kJ

Q = 113,270 J

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The dipole moment of the hydrogen bromide HBr molecule is equal to 6.77 D. Therefore, option (C) is correct.

A dipole moment can be determined from the product of the magnitude of the charge and the distance between charges and is represented by the Greek letter ‘µ’.

The bond dipole moment arises between two atoms of different electronegativities in a chemical bond.

μ = q × d

Where: μ is the bond dipole moment, q is the magnitude of the partial charges, and d is the distance between them.

Given, the bond Length of HBr = 1.41 A° = 1.41 × 10⁻¹⁰ m.

The charge on H and Br atoms =  1.6 × 10 ⁻⁹ C

Therefore,

Dipole Moment of HBr =  Distance × Charge

Dipole Moment =  1.41 × 10⁻¹⁰ ×  1.6 × 10 ⁻¹⁹

Dipole Moment = 2.25882 × 10⁻²⁹ C.m  

The conversion factor of one-coulomb meter is equal to 2.9989  ×10⁻²⁹ Debye

Therefore,

Dipole Moment = 2.25882  ×10⁻²⁹ × 2.9989  ×10²⁹

Dipole Moment of the HBr = 6.77 Debye.

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Plasma state of matter is mostly represented in the image

A state of matter is a way to describe the behavior of atoms and molecules in a substance and there are three common states of matter which is solids means relatively rigid, definite volume and shape and they vibrate in place but don't move around and plasma is the the when at the very temperature of stars atom loses their electron and the mixture of electron and nuclei that result` in plasma state of matter

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      An ion is an atom or collection of atoms where the number of electrons and the number of protons are different. A positive ion, also known as a cation, is a particle that exists when the number of electrons exceeds the number of protons.

      Because they have an equal number of protons and electrons, atoms are neutral particles. Ions are electrically charged particles that can be created by either taking electrons away from neutral atoms to form positive ions or adding electrons to neutral atoms to produce negative ions.

    Depending on whether the number of electrons in an atom is greater or less than the number of protons in the atom, an atom can develop a positive charge or a negative charge. An atom is referred to as an ION when it is drawn to another atom due to an imbalance in its electron and proton numbers.

    Any element that has a variable ratio of protons to electrons, producing either a positively or negatively charged atom, is said to contain an ion. It is relatively easy to determine whether an element is an ion.

       To become a noble gas configuration, elements create ions in order to become more stable. They lose or gain electrons to create ions, which results in a fully filled outer shell configuration and subsequently stability.

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