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vova2212 [387]
4 years ago
12

Zoe used two examples to represent two different states of matter. Example 1: Fish swimming around one another in an aquarium Ex

ample 2: Fish swimming away from one another in the ocean Which statement is correct? Example 1 represents a gas and Example 2 represents a solid. Example 1 represents a liquid and Example 2 represents a gas. Example 1 represents a gas and Example 2 represents a liquid. Example 1 represents a solid and Example 2 represents a gas.
Chemistry
2 answers:
scoray [572]4 years ago
8 0

Answer:

the 4th choice.

Explanation:

the fish can't swim through the aquarium

the fish can't swim in the air

GuDViN [60]4 years ago
5 0

Answer:

B.Example 1 represents a liquid and example 2 represents a gas

Explanation:

Solid : It is that states of matter in which atom or molecules very close to each other. The distance between atoms or molecules is negligible. The atom or molecules can't escape out of solids.

Liquid: It is that states of matter in which atoms or molecules are close to each other but not very close as in solid.The distance between atoms or molecules is small.

Gas: It is that states of matter in which atoms or molecules are very far to each other .The distances between atoms or molecules are very large. The two two atoms can not come closer to each other at normal condition.

We are given that Zoe used two examples to represent two different states of matter

1.Example :Fish swimming around one another in an aquarium

It means fish can not escape out of aquarium. Hence, it represent the liquid states of matter.

2.Example: Fish swimming away one another in the ocean .

When fish swimming away one another ,Then they can'not come close to each other .Hence, it represents gas states of matter.

Therefore, option D is true.

Answer:Example 1 represents a solid and example 2 represents a gas

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Answer:

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Explanation:

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there are no choices of statements

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How many mL of a stock 50% (w/v) KNO3 solution are needed to prepare 250 mL of a 20% (w/v) KNO3 solution?
Andre45 [30]

Answer:

100ml of a stock 50% KNO3 solutions are needed to prepare 250ml of a 20% KNO3 solution.

Explanation:

In the given question it is mentioned that

     S1=50%

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      S2= 20%

We all know that

                     V1S1=V2S2

                     ∴V1=  V2×S2÷S1

                     ∴V1=  V2S2×1/S1

                      ∴V1= 250×20÷50

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6 0
4 years ago
Which of the following is NOT a characteristic of a compound?
MissTica

Answer:

I think it's D

sorry if I'm wrong.

Explanation:

4 0
4 years ago
rusting of steel can be prevented by coating the steel with a layer of zinc. Explain, in terms of electron transfer, why steal d
Luba_88 [7]

Answer:

Wouldn't rust because zinc will lose electrons more readily than iron and will therefore oxidize first.

Explanation:

This process whereby rusting of steel is prevented by coating the steel with a layer of zinc is known as galvanization.

Now, in this process, the steel object will be coated in a thin layer of zinc. This coating will prevent oxygen and water from reaching the underneath metal since the zinc will also act as a sacrificial metal.

Now, Zinc is used because it has a lower reduction potential than iron and thus it will get easily more oxidized than iron. Which means the zinc will lose electrons more readily than iron.

Also, since zinc has a lower reduction potential, it is therefore the more active metal. Thus, even if the zinc coating is scratched and the steel is exposed to moist air, the zinc will still get to oxidize before the iron.

7 0
3 years ago
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