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Alina [70]
2 years ago
10

Is it C???

Chemistry
2 answers:
9966 [12]2 years ago
6 0
The right answer is indeed letter c

Bess [88]2 years ago
6 0

Answer: B. compound

Explanation: "A compound is a substance made up of two or more elements that can only be separated by chemical means. The elements that make up the compound are always resent in the same ratio."

"A mixture does not have a fixed ratio. The components of a mixture keep their unique properties and identities. They can be separated physically."

I know this is late but maybe it will help someone else in the future.

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Calculate the mass percent composition of sulfur in Al2(SO4)3.
Anastaziya [24]
The molar mass of aluminum sulftae is 342.14 g/mol.

Since the subscript shows that there are 3 sulfurs within the substance, the total mass of sulfur is 96.21g/mol

Now take the mass of the sulfur and divide it by the molar mass of aluminum sulfate, then multiply by 100:
(96.21/342.15)(100) = 28.1% mass composition of sulfate
6 0
3 years ago
How do you expect the size of the atoms to change as you go from neon to argon to krypton
Olenka [21]

Answer:

The number of energy levels will increase.

Explanation:

As they are all Noble Gases, they are all in the same family. However, as you go further down the list of Noble Gases, the period number increases. The period number shows the number of energy levels. Hence, an increase in energy levels.

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2 years ago
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pshichka [43]
This statement is false. Everything expands when heated
8 0
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What would happen if the lid of a jar filled with helium gad was removed?
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I hope this helps!
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