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kifflom [539]
3 years ago
6

HELP PLEASE! Picture for question provided

Chemistry
1 answer:
BartSMP [9]3 years ago
5 0

Answer:

Explanation:

The first one is CrO.  The Chromium has the same charge as the oxygen so mol numbers are dropped.

The Second one is CrO2 The two oxygens have a charge of 2(-2) = -4. To balance this, the Chromium must have a charge of +4 Cr(Iv)O2

The third one is can be set up like this

Cr + 3(-2) = 0

Cr - 6 = 0

Cr = 6

Therefore the formula is Cr(vi)O3

The last one is a bit tricky. Follow this carefully. There are 2 Crs and 3Os.

The formula looks like this

2Cr + 3(-2) = 0

2Cr - 6 = 0

2Cr = 6

Cr = 3

The formula is Cr(iii)2 O3

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Considering the Charles' law, the gas would have a temperature of -109.2 C.

<h3>Charles' law</h3>

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Charles' law is expressed mathematically as:

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If you want to study two different states, an initial state 1 and a final state 2, the following is true:

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In this case, you know:

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You can see that the pressure remains constant, so you can apply Charles's law.

Replacing in the Charles's law:

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Learn more about Charles's law:

brainly.com/question/4147359?referrer=searchResults

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3 years ago
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