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3 years ago

Describe in your own words, in terms of particle movement and energy, what occurs when a liquid is cooled to its freezing point.

1 answer:

4 0

Liquids have free and fast moving particles. Liquids do not take a specific shape unless they are enclosed such as in a bottle. Anyway, since they are free flowing when they freeze, their movement becomes very slow. Eventually the particles will not have room to move as they used to and will be held in one place. The particles are still moving but they are only shaking or vibrating in the same place. You can't even tell this movement is happening, and that is what happens when liquid freezes.

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AVERAGE WEIGHT OF CHILDREN, AGE 1-5

aalyn [17]

The most weight was gained between 0 - 1 years for both boys and girls.

<h3>What is weight?</h3>

Weight is a vector quantity that varies from place to place to due to effect of gravity.

Average weight of the boys in pounds;

age -------------------- average weight

0 -------------------------50

1 ------------------------- 45

2 ------------------------ 40

3 ------------------------- 35

4 -------------------------- 30

5 -------------------------- 25

Average weight of the girls in pounds;

0 --------------------------------- 20

1 ----------------------------------- 15

2 ------------------------------------ 10

3 --------------------------------------5

4 -------------------------------------- 0

5 --------------------------------------- 1

The most weight was gained between 0 - 1 years for both boys and girls.

Learn more about average weight here: brainly.com/question/24889549

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3 years ago

For the reaction: CaO + SO3 → CaSO4, how many moles of CaSO4 are produced

Allisa [31]

Answer:

here hope it helps can you mark me brainliest please

Download pdf

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3 years ago

Hydrazine (N2H4), a rocket fuel , reacts with oxygen to form nitrogen gas and water vapor. The reaction is represented with the

MakcuM [25]

Answer is: 12 <span>moles of water will be produced.
</span>Balanced chemical reaction: N₂H₄ + O₂ → N₂ + 2H₂O.
n(N₂H₄) = 6 mol.
From balanced chemical reaction: n(N₂H₄) : n(H₂O) = 1 : 2.
n(H₂O) = 2 · n(N₂H₄).
n(H₂O) = 2 · 6 mol.
n(H₂O) = 12 mol.
n - amount of substance.

4 0

3 years ago

Which statement best describes the formation of a solution?

aev [14]

Answer:

A small amount of solute dissolved in a larger amount of solvent.

Take this analogy to help you understand, if you were to put a teaspoon of sugar in a liter of water it would dissolve, but if you put a sack of sugar in it it would not dissolve! The solute is what is being dissolved and the solvent is what dissolves the solute, so that eliminates some of the options.

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3 years ago

Salt mixed in water is an example of a___

Natasha2012 [34]

The answer to this is a solution

3 0

3 years ago