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vesna_86 [32]
3 years ago
11

Which of the following describes the motion of water molecules in ice ?

Chemistry
2 answers:
mars1129 [50]3 years ago
6 0
The answer is option D "they are vibrating slightly." In ice the molecules are stuck together and shaking like a bunch of little people together trying to keep warm. Also its not option C because they do move all four stages move. (solid, liquid, gas, plasma) Its not option B Liquid molecules are slowly moving around therefore those molecules are moving faster than a solid. Its also not option A because as discussed solids move slower than a liquid.

Hope this helps!
Keith_Richards [23]3 years ago
4 0
They are vibrating slightly.

It is know to us that when a matter is cooled down, it's motion of molecules decreases relatively. And on the other hand, when a matter is heated, it's molecular motion increases and thus produced Kinetic Energy is converted into heat energy and hence increasing the temperature of the matter. So, when water is cooled and it changes it's state from liquid to ice, it's molecular motion is very slow.
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What is the mass of water that results from combining 2.0g of hydrogen with 16.0g of oxygen?
makkiz [27]
8.0g's of water is your answer
4 0
3 years ago
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1) A potassium carbonate hydrate has a formula K2CO3.XH2O. 10g of the hydrate leave 7.83g of anhydrous salt upon heating. Deduce
OLEGan [10]

The formula of the hydrated potassium carbonate salt is K₂CO₃.2H₂O

Based on the calculated mass ratio of carbon and oxygen in carbon dioxide, carbon has a fixed composition.

<h3>What are hydrated compounds?</h3>

Hydrated compounds are compounds that contain one or more molecules of water physically combined with a molecule of the compound.

The formula of the hydrated potassium carbonate salt is determined as follows:

Mass of the hydrated sample = 10.0 g

Mass of anhydrous salt = 7.83

mass of water = 10 - 7.83

mass of water = 2.17 g

Molar mass of water = 18.0 g

Molar mass of anhydrous potassium carbonate = 138 g

moles of anhydrous potassium carbonate in sample = 7.83/138

moles of anhydrous potassium carbonate = 0.056 moles

moles of water in the hydrated salt = 2.17/18

moles of water in the hydrated salt = 0.12

Mole ratio of water to anhydrous salt = 0.12/0.056

Mole ratio of water to anhydrous salt = 1 : 2

Formula of hydrated salt = K₂CO₃.2H₂O

The mass ratio of carbon to oxygen in the compounds is given below:

Sample 1:

Mass ratio = 3.62 / (13.26 - 3.62)

Mass ratio = 0.38 : 1

Sample 2:

Mass ratio = 5.91 / (21.66 - 5.91)

Mass ratio = 0.38 : 1

Sample 3:

Mass ratio = 7.07 / (25.91 - 7.07)

Mass ratio = 0.38 : 1

Carbon has a fixed composition.

Learn more about hydrated compounds at: brainly.com/question/11112492

#SPJ1

6 0
1 year ago
<img src="https://tex.z-dn.net/?f=what%20%5C%3A%20is%20%5C%3A%20acid%20%5C%3A%20%20%20%5C%3A%20%20%5C%3A%20%7B%3F%7D%20" id="Tex
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meaning:An acid is a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts. Some acids burn or dissolve other substances that they come into contact with.

5 0
3 years ago
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A chlorine atom has a diameter of 175 picometers (pm). Please write the diameter, in metered, in scientific notation.
IrinaVladis [17]
The answer is 1.75 x 10¹⁰ m.
Scientific notation<span> refers to a mathematical expression that is  used to represent a decimal number between 1 and 10 multiplied by ten, or we can say that to write a large numbers using less digits. 
Diameter of chlorine atom = </span><span>175 picometers (pm) 
</span>175 pm = <span>0.000000000175 m
in scientific notation we will write </span>0.000000000175 m as <span>1.75 x 10</span>¹⁰ m
8 0
3 years ago
Which of the following results from acid deposition? View Available Hint(s) Which of the following results from acid deposition?
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Answer:

Objects made of stone, like marble headstones, are worn away.

Explanation:

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This weak acid that is produced easily wears away materials made up of marble and other sculptures. The most active of the acid is weak carbonic acid produced by dissolution of carbon dioxide in rain water.

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3 years ago
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