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andrey2020 [161]
3 years ago
9

I need help with the first question

Chemistry
1 answer:
gregori [183]3 years ago
7 0
Zn⁰ ----> Zn⁺²   +   2e⁻ -  oxidation
Hg⁺² + 2e⁻ ----> Hg⁰ - reduction

Zn loses 2 moles of electrons , and Hg gains 2 mole of electrons.
So, number of moles of electrons gained and lost during reaction is equal.

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