Which half-reaction correctly represents reduction?

Chemistry

1 answer:

Neko [114]3 years ago

5 0

Answer: B. Ca2+ + 2e- ---------> Ca

Explanation:

Reduction involves the gaining of electrons as well as a decrease in the oxidation state of the atom or ion.

In this case; Ca2+ gains two electrons and the oxidation state is reduced from +2 to 0.

Ca2+ + 2e- ---------> Ca

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