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My name is Ann [436]
3 years ago
11

12. What is the mass, if the density is 2 and the volume is 6? * 3 O 12 O 15

Chemistry
1 answer:
AURORKA [14]3 years ago
3 0
The answer to this problem is =12
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Cu2 -> Cu2+ is it getting oxidized?
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Explanation:

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Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Consider the following reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

the oxidation state of copper is changed from +2 to +1 so copper get reduced.

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the oxidation state of carbon is +2 on reactant  side and on product side it becomes  +4 so carbon get oxidized.

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The oxidation state of carbon on reactant side is +4. while on product side is  also +4 so it neither oxidized nor reduced.

H₂S + 2NaOH → Na₂S + 2H₂O

The oxidation sate of sulfur is -2 on reactant side and in product side it is also -2 so it neither oxidized nor reduced.

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