How many molecules are in 21.5G of water

Answers

Answer 1

Answer:

There are 6.022×1023 molecules in a mole. There are 18.01528 grams of water per mole of water. in 1g water

Explanation:

please Mark my answer in brainlist


Related Questions

9. Which of Earth’s sphere consists of all living things? A. hydrosphere B. geosphere C. biosphere

Answers

Answer:

i think its b

Explanation:

i took it

Why isn’t a dream made of matter?

Answers

Most dreams are so mundane that we forget about them almost immediately after they occur. Amusingly, Freud attributed this amnesiac disposition to the actual content of dreams. According to him, the content is so intensely sexual and violent that our mind must repress it in order to maintain its health.

The electron configuration 1s2 2s2 2p6 3s2 3p6 4s1 3d10 describes the electron configuration of what neutral element?

Answers

Answer:

Copper

Explanation:

Copper has this electronic configuration.

You can count the total number of electrons

= 29

Cu is the 29 th in the periodic table.( atomic number = 29)

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the given electronic configuration represents copper element.

What is element?

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

The systematic distribution of electrons in the various atomic orbitals is called its electronic configuration. The atomic number of copper is 29. The electronic configuration of copper is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰. 1,2,3 represents the number of shells and s and represents the orbitals. The superscripts represents the number of electrons in each orbitals.

Therefore, the given electronic configuration represents copper element.

To know more about element, here:

brainly.com/question/8460633

#SPJ2

what year did ernest rutherford make his discovery

Answers

Answer:

May, 1911: Rutherford and the Discovery of the Atomic Nucleus.

Explanation:

Mark me brainly please.

Which type of electromagnetic radiation had a lower frequency than infrared radiation

Answers

Answer:

Radio waves

Explanation:

Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

When Newton started studying gravity, the concept of gravity was already in place.
A. True
B. False

Answers

True I hope this helps

a substance that cannot be broken down into simpler substances

Answers

Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.

why don't birds get electrocuted when they land on the electric wire?​

Answers

Answer:

Birds can sit on power lines and not get electric shocks because the electricity is always looking for a way to get to the ground. The birds are not touching the ground or anything in contact with the ground, so the electricity will stay in the power line.

Pls mark as brainliest answer if it helps you

( i will give you brainliest who ever answers the question first and the right answer!!!)

What do you predict would happen if you brought a negatively charged balloon next to an uncharged piece of paper?

A. The balloon will attract the paper.
B. The balloon will repel the paper.
C. Nothing will happen.
D. The paper will repel the balloon.

Answers

Answer: A

Explanation:

Answer:

B. The ballon will repel the paper

A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at 2 1.2 m/s , which
force is closest to the net force acting on the vehicle?
F 9,600 N
G 1,300 N
H 900 N
J 94 N

Answers

G. ………………………. . Z z… z z z z z z z z

Pls help me!! Explain how the N:Z ratio can help predict the type of radiation Zr-85 and Zr-95 emit.


No links pls

Answers

Based on N:Z ratio, Zr-85 is expected to decay by positron emission. Zr-95 is expected to emit beta particles in a beta decay.

The N:Z ratio determines the stability of a nucleus. If a nucleus has  N:Z ratio >1.5 or <1.0, such a nucleus is unstable and will undergo radioactive decay. The aim of such a decay is to attain a favorable  N:Z ratio.

For Zr -85, the  N:Z ratio is 1.1 while the  N:Z ratio of Zr-95 is 1.4.  Zr -85 is expected to decay by positron emission which increases the N:Z ratio. For  Zr-95, the nucleus tends to undergo processes that decrease the  N:Z ratio such as beta emission.

Learn more: https://brainly.com/question/2192784

Describe ions of xenon

Answers

Answer: a common ion of xenon is fluoride-ion. xenon oxide difluoride is also a fluoride-ion acceptor, forming the only other anion containing xenon in the +4 oxidation state, the XeOF3− anion in Cs+XeOF3−. Xenon hexafluoride is both a strong fluoride-ion donor and a strong fluoride-ion acceptor.

can someone help me with this question!!

Answers

Answer:

A Because sodium chloride can break down the table sugar

Explanation:

hi

Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help​

Answers

You need to convert them

At what point on a heating curve graph does a phase change occur?

at each plateau

at the first plateau

at each slope

at the last slope

Answers

Answer:

Electrical Bonding Investigation Data Quick Check

Explanation:

B. Heat energy is added to the substance, weakening the electrica attraction between molecules.

C. Both the melting point and boiling point are lower

C. The lone pairs of electrons in the oxygen atom causes the molecule to be bent; the oxygen atom has a particle negative charge, while the hydrogen atom have particle positive charges

D. Phase change

C. At each plateau

please help me

Type the correct answer in the box. Spell all words correctly.

What does Dalton's atomic theory propose?

A ______ causes rearrangement of atoms.​

Answers

chemical reaction :)

You want to build a deck off your kitchen and you estimate that you will need 3000 #8 nails all together. Rather than pay extra for them to be put in little boxes, you go to a hardware store where they sell nails in bulk. How does the sales clerk count out 3000 #8 nails for you?

Answers

Answer:

The sales clerk can count your nails in 6 groups of 500 nails, or 30 groups of 100 nails to ease the counting process and garauntee a more accurate result.

Explanation:

Kinetic energy is described as

Question 1 options:

Movement


Decreasing energy


Stored energy


Elastic

Answers

I’m pretty sure it’s movement, but I’m not 100%

Answer:

its the movement because kinetic energy means moving not stopping or decreasing

Explanation:

A gas measures 140 mL at 400 K find its volume at 120 K if the pressure remains constant.

Answers

By applying Charles law, the final volume of the gas is equal to 42 mL.

Given the following data:

Initial volume = 140 mLInitial temperature = 400 KFinal temperature = 120 K

To find the final volume of the gas, we would apply Charles law:

Charles law states that when the pressure of an ideal gas is kept constant, the volume of the gas is indirectly proportional to the absolute temperature of the gas.

Mathematically, Charles law is given by the formula;

[tex]\frac{V}{T} =k\\\\\frac{V_1}{T_1} = \frac{V_2}{T_2}[/tex]

Where;

T is the temperature of an ideal gas.V is the volume of an ideal gas.

Substituting the given parameters into the formula, we have;

[tex]\frac{140}{400} = \frac{V_2}{120} \\\\140 \times 120 = 400V_2\\\\16800 = 400V_2\\\\V_2 = \frac{16800}{400}[/tex]

Final volume = 42 mL.

Read more on Charles law: https://brainly.com/question/22971882

..........................................................

Answers

Explanation:

...........................................................

Answer:

??????????????

Explanation:

where is your question?

5. How could you use Kepler's 3rd Law to find the relationship between all of the
moons of Jupiter?

Answers

Answer:

essentially through the use of keplers 3rd law comparing the proportionality of a planets squared versus cubed orbital patterns you can determine how fast a planet will orbit something and complete a full orbit

Explanation:

Kepler's Third Law: the squares of the orbital periods of the planets are directly proportional to the cubes of the semi-major axes of their orbits. Kepler's Third Law implies that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit. (from NASA)

Write the balanced COMPLETE ionic equation for the reaction when Na₂CO₃ and AgNO₃ are mixed in aqueous solution. If no reaction occurs, simply write only NR.

Answers

Answer:

see explanation

Explanation:

Write the balanced COMPLETE ionic equation for the reaction when Na₂CO₃ and AgNO₃ are mixed in aqueous solution. If no reaction occurs, simply write only NR.

Ag (+1) + NO3(-1) + 2 Na(+1) + Co3 (-2)--> Ag2CO3 (s) + 2 Na (+1) + 2NO3(-1)

What is the periodic table? ​

Answers

here u go hope it helps

Answer:

The periodic table, also known as the periodic table of chemical elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry.

Explanation:

The periodic table is a tabular arrangement of chemical elements that classifies elements according to repeating qualities and is structured by increasing atomic number. Metals are located on the left side of the table, whereas nonmetals are located on the right. The columns are referred to as groupings.

in pic

____________________________________________________

(Hope this helps can I pls have brainlist (crown)

Which of the following forms of alcohol can be consumed? A. Propanol B. Methanol C. Butanol D. Ethanol Please select the best answer from the choices provided. A B C D.

Answers

Answer:

D. Ethanol

Explanation:

because Propanol, Methanol and Butanol are not safe to consume. soo the answer is Ethanol

Ethanol forms of alcohol can be consumed.

What is ethanol?Ethanol is used in the manufacture of medication, plastics, lacquers, polishes, plasticizers, and cosmetics. Ethanol is used in medicinal drugs as a topical antiinfective, and as an antidote for ethylene glycol or methanol overdose.Industrial merchandise containing ethanol include beverages, perfumes, aftershaves and colognes, medicinal liquids, mouthwashes, liniments, and a few rubbing alcohols.within the worst cases, there will also be breathing issues, low blood strain, incontinence heart issues, blood issues, liver damage, and demise. Ethanol may also dry out and irritate the pores and skin; there may be aches, redness, and swelling. Eye exposure to ethanol can also cause tearing, burning, and stinging.

Learn more about ethanol here:-https://brainly.com/question/5750283

#SPJ2

When a glucose molecule loses a hydrogen atom in an oxidation-reduction reaction, the glucose molecule is ________

Answers

Answer:

Important

Explanation:


Which two statements are true for both compounds and mixtures?
A. They are made up of more than one type of atom.
B. Their particles all have the same chemical formula.
O C. They can be separated into two or more elements.
D. Their particles are held together by chemical bonds.

Answers

Answer:

B and C is your best option

BRAINLIST ???

Please help! Its due now!

Answers

Answer:

PARTICLES!

I hope I was on time! Cheers! :^)

The third one I think

Please count compound list each element and the amount of each and then figure out the total of the atoms
​NEED ANSWER ASAP

Answers

Answer:

Carbon: 18, Hydrogen: 16, Oxygen: 8

Explanation:

Total # of atoms = 42

Organic

All the organisms alive today arose from preexisting organisms.
O True
O False

Answers

Organisms often die with a little time. They make new oragnisms which then carry on their legacy.

what is an element? (name ten elements and write their symbols) (name the elements that make up proteins, fats and carbohydrate)​

Answers

I really hope this helped!

An element is the basic unit of things.

10 elements:

Iron (Fe)Oxygen (O)Bismuth (Bi)Lead (Pb)Boron (B)Helium (He)Hydrogen (H)Neon (Ne)Tin (Sn)Zinc (Zn)

Elements that make up proteins:

Carbon (C)Hydrogen (H)Oxygen (O)Nitrogen (N)Sulfur (S)

Elements that make up fats:

carbon (C)hydrogen (H)oxygen (O)

Elements that make up carbohydrate: (before any oxidation or reduction)

carbon (C) hydrogen (H)oxygen (O)
Other Questions
What is the quotient of 1.155 x 10^5 and 1.65 x 102 expressed in scientificnotation? Nick sketches the graph of y = 0.5' for x 20 y 0.5 of Make one criticism of his sketch. bonds that require payment of the full principle amount of the bond at the end of the loan term are referred to as **PLEASE HELP OMG**The square below is dilated by a scale factor of 3/2. Find the perimeter of the dilated square. phn tch a thc x^3 - x thnh phn t In the minds of the Pilgrims, Thanksgivings was a religious observance of prayer and ? (Opposite of feasting) The diagram represents an atom of an element keye = electron = 4n = neutron = 5p = proton = 4Which symbol gives this information? 1. She ............ late every day. Please count compound list each element and the amount of each and then figure out the total of the atomsNEED ANSWER ASAP Which of the following is the BEST description of osmosis?A.) as active transportB.) as requiring a transport proteinC.) as an example of facilitated diffusionD.) as diffusion of water through a selectively permeable membrane What literacy device is being used: People forced from their homes with nowhere to go. Which statement describes the end behavior of the exponential equation y = 3^x?A as x -> - , y -> - B as x -> - , y -> 0C as x - > , y -> - Which of the following is not one of Garners Theory of Multiple Intelligences?Question 4 options:Linguistic intelligenceInterpersonal intelligenceMuscular intelligence Imagine that scientists have just discovered a non-bird dinosaur skeleton. They want to know whether the dinosaur was closely related to birds. What features in ...might help them decide? Please select the word from the list that best fits the definitionSome frog species only have one leg. The chapter argues that gender is not just a matter of difference in behavior, but also of differences in ________ sets if 98% of households have at least one television set and 4 households are selected, find the probability that at least one household has a television set. Diego Rivera was a member of the Mexican Communist Party. He was concerned about worker rights and worker equality. Does that influence your thoughts about the value of this document? Explain. the stamp act congress How many Moles of glucose are produced from 12 moles of CO2 in photosynthesis?