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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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Electronegativity is :_______________
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Answer:

c) the attraction of an atom for the electrons in a covalent bond.

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The chart shows the solubility of different substances.
Annette [7]
Answer: 1) Temperature can change the solubility of a solute.

Explanation:

The chart is missing so there is no way to tell what does the graph show.

Yet, I can help you because I can explain the status of each statement of the choices. As you will see there is only one possibility..

<span>1) Temperature can change the solubility of a solute.

Yes, temperature definetly can, and mostly do, modify the solubility of a solute.

You can search any chart of solubility and will find that.

I can give you two examples:

a) Sodium chloride: dissolve some spoons of salt in a cold water  until you can not dissolve more. Then, heat the water, you will find that more salt will get dissolved, proving that the temperature of the solution increases the solubility of sodium chloride.

b) Carbon dioxide gas: the soft drinks have CO₂ molecules dissolved in it.
 
The higher the temperature of the soft drink the less the amount of CO₂(g) that can be dissolved. That is why the soda bottling plants cool the beverage before adding the CO₂(g).

2) </span><span>Temperature has no affect on the solubility of a solute.

Since this is the opposite to the first statement and the first is true, this is false.

3) Salt has a greater solubility than sugar.

False.

This is an empirical result, which you cannot predict theoretically. So you need to see at the data either in a table or in a chart. Else you can test it at home. After the empirical data are shown it results that more grams of sugar can be dissolved in water compared to salt.

That is something you ca see in a chart or you can prove by yourself.

4) Nitrite salt has a greater solubility than sugar. </span>

False.

Looking at some data you can find that sodium nitrite solutiliby is aroun  70 - 100 g/10 g while sugar (sucrose) solutiblity is around 180 - 235 g/ 100 g.

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3 years ago
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