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4 years ago

Which of the following describes what occurs as a liquid becomes a solid? (5 points)

Chemistry

2 answers:

Ahat [919]4 years ago

7 0

Answer:

A physical change occurs; the particles of the liquid vibrate faster and their kinetic energy increases.

Explanation:

As you know when a liquid becomes a solid the particles in the liquid vibrate faster, and with more vibration and with more movement in th eparticles, the kinetic energy increases, and because of that the volume also increases, solids increase their volume contrary to liquids, that is why the answer is the first option.

Elza [17]4 years ago

6 0

I believe the correct option would be the second one. Particles or atoms that make up the liquid will tend to vibrate and or move more slowly as it turns into a solid, the particles decrease in kinetic energy.

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A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130

IgorLugansk [536]

Answer: No crystals of potassium sulfate will be seen at 0°C for the given amount.

Explanation:

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be $\frac{7.4}{100}\times 130=9.62g$

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

7 0

3 years ago

"Splotchy" most likely refers to a mineral's: O color luster streak O hardness

alina1380 [7]

Answer:

luster

i just did it and its luster

8 0

3 years ago

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23. The cell has a

andrew11 [14]

Then that would be 100% all together I believe

5 0

1 year ago

What is the electronic configuration of Au3+?

Anettt [7]

Answer:

$AU^{3+} : [Rn] 5f^3$

Explanation:

Writing electronic configuration of any element you should know atomic number of that element ,

and also electrons are filling according to their energy level and first electron is filled in the lower energy orbital

and it follows n+1 rule if n+1 is same for two orbital electron will go first in the lowest value of n.

writing electronic configuration of ion can be done like first for their neutral atom and then add or remove electron it will make things easy because there are also some eception case their you may do wrong.

$AU : [Rn] 5f^3 6d^1 7s^2$

remove three electron from outer most shell of AU

$AU^{3+} : [Rn] 5f^3$

4 0

3 years ago

1. How would the series of figures change in the presence of a catalyst?

statuscvo [17]

No, it won't change the amount of reactants nor the products as a catalyst will only provide an alternative path where lower activation energy is needed for the process to take place.

hope this explains it

If it does, please give it a brainliest :)))

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3 years ago

Read 2 more answers