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Strike441 [17]
3 years ago
12

2Ag + H2S ? Ag2S + H2 Which statement is true about this chemical equation? A) Ag (silver) is oxidized and H (hydrogen) is reduc

ed. B) Ag (silver) is reduced and H (hydrogen) is oxidized. C) S (sulfur) is reduced and H (hydrogen) is oxidized. D) S (sulfur) is oxidized and Ag (silver) is reduced.
Chemistry
2 answers:
nadezda [96]3 years ago
6 0

Answer:

It is A).

Explanation:

Silver (Ag) goes from the  pure metal to Ag+ losing 1 electron so it is oxidised.

The hydrogen ion  gains electrons and is reduced.

svet-max [94.6K]3 years ago
5 0

<u>Answer:</u> The correct answer is Option A.

<u>Explanation:</u>

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

X^{n+}+ne^-\rightarrow X

For the given chemical reaction:

2Ag+H_2S\rightarrow Ag_2S+H_2

The half cell reactions for the above reaction follows:

Oxidation half reaction:  Ag\rightarrow Ag^{+}+e^-

Reduction half reaction:  2H^{+}+2e^-\rightarrow H_2

As, silver is loosing 1 electron to form silver cation. Thus, it is getting oxidized. Hydrogen is gaining 2 electrons to form hydrogen atom. Thus, it is getting reduced.

Hence, the correct answer is Option A.

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