Chemistry High School

how many moles of water is 5.02 x 10 18 molecules of water

Answers

Answer 1

Answer:

8.334×10^-6 moles

Explanation:

a mole is 6.023×10^23

5.02×10^18 ÷ 6.023×10^23=8.33×10^-6

so there are 8.33×10^-6 moles of water in 5.02x10^18 molecules of water

Answer 2

The number of moles of water in which 5.02 × 10¹⁸ molecules of water is present is 8.33 × 10⁻⁶.

What is moles?

Moles is a unit which is used to tells about the quantity of any substance, in one moles of any substance 6.023 × 10²³ number of atoms of that substances are present.

In 1 mole of water = 6.023 × 10²³ number of molecules of water is present

So, number of 5.02 × 10¹⁸ molecules of water present in how many moles will be calculated as:
Required moles = 5.02 × 10¹⁸ / 6.023 × 10²³ = 8.33 × 10⁻⁶

Hence, required moles is 8.33 × 10⁻⁶.

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i need to write a brief paragraph on why this lab is important, please help!! here is the question!
How can the properties of acids and bases be used to classify solutions?

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Answer:

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Gas thank me later bro
waste of time.
air = breathing = overrated

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B speedometer and magnet
C compass and tape measure
D tape measure and stopwatch

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D is the correct answer

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A. Earth’s rotation severely limits the amount of sunlight hitting a given region, which prevents living systems from surviving

B. By stabilizing temperatures for a given region, earth’s rotation helps sustain living systems in that region

C. Earth’s rotation forces many animals to migrate in order to continuously receive the Sun’s rays

D. Because Earth’s rotation brings darkness to a given region, plants are unable to survive in that region at night

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Answer:

I think it's B

But A seems a good answer too

It might be D

But Imma go for C

Explanation:

Which one is the right answers?

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I believe its Sodium Chloride.
I hope that helps!

PLEASE HELP

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It causes more hurricanes and tornadoes and it raises the earth’s temperature

Mark other guy brainliest

I needed the answer for the test and he is correct

potassium solid and aqueous zinc chloride react to produce what?​

Answers

K (s) + ZnCl (aq) ====》 KCl ( aq) + Zn (s)

The boiling process is considered to be____

Answers

your answer is D. physical change, because a new substance is not formed.

The boiling process  is considered to be a physical change as no new substance is formed.

What is a physical change?

Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.

Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.

They involve only rearrangement of atoms and are often characterized to be changes which are reversible.

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What happens when you mix calcium chloride and hydrogen peroxide?

Answers

Answer:

Explanation: When chlorine reacts with hydrogen peroxide, hydrogen peroxide falls apart into water and oxygen. Chlorine gas hydrolyses into hypochlorous acid (, which subsequently  into hypochlorite ions . The reaction between hydrogen peroxide and hypochlorite takes place very quickly.

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Answers

46.7 g=total mass
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Remember to round

Part A
Campers want a travel cup that keeps the temperature of a beverage from changing for up to two hours.
They may want to keep a hot drink hot when they are in a cold place. Or they may want to keep a cold drink
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Describe how you plan to design, build, and test a travel cup that uses thermal insulators?

Answers

The statement is "thermal insulators of a double-layered vacuum seal make a liquid heated when it's cold and keep it cool when it's hot."

What is thermal insulator?

A thermal insulator is a material that inhibits heat from being conveyed from one location to another.

Campers seek a travel cup that cools liquids with a cold pack. Design the exterior portion of the cup to keep the drink cold after it has cooled down, as well as the interior compartment to contain the cold pack and channel heat from the liquid in the cup. One of the greatest ways to keep your coffee hot for a long time is to use vacuum insulation in a thermos. On the surface, the concept appears straightforward.

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Answers

Answer:

Metabolism

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Answers

Answer:

false

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the magnetic domains in the area around a magnet where the force acts.

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the north pole of the magnet will repel the north pole of another magnet

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Genetic engineering improved the lives if individuals with insulin because it helps the body use and store sugar, since people with diabetes can't produce insulin.

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Explanation:

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Answer:

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2. How many atoms of Carbon are in the reactant?
3. How many atoms of Oxygen are in the reactant?
4. How many atoms of Hydrogen are in the product?
5. How many atoms of Oxygen are in the product?
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Answers

Answer:

1) 2

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4) 2

5)3

6)1

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Answers

Answer:

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Explanation:

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Answers

167 mL

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Explanation:

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Answers

Answer:

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(No scammers) can someone help me pls

Answers

Answers is - 198 kilo joules

what is my name?
chetana
ikshya
grishma
bhumika
puja​

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they're name of bunch of girls.

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I hope this helps you with your problem !!!!!

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Answers

b
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brainlyest pls

Answer:

The speed of the reaction

Explanation:

I just took the test and got it right... i hope this helps u :)

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sorry I don't know 4one

i HOPE IT'S HELP

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Answers

Answer:

True

Explanation:

Hope this helps

true. hope this helps have a good day
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