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An example of a single replacement reactions is the polishing of silverware by soaking with aluminum. Silver reacts with Sulfur, S, to become Ag2S. Aluminum replaces the silver, Ag, in this reaction. Which of these is the correct balanced chemical reaction for this?
A) Ag + Al2S →Ag + Al2S3
B) Al + Ag2S → Ag + Al2S3
C) 2Al + 3Ag2S →6Ag + Al2S3
D) 2Ag + 3Al2S →6Ag + Al2S3

Respuesta :

YES THE ANSWER IS CCCCC
sarajevo

The correct answer is option C

2Al + 3Ag₂S → 6Ag + Al₂S₃

In a balanced reaction the number of atoms of different elements is equal on both side of the reaction.

Reactant side: 2 atoms of Al, 6 atoms of Ag and 3 atoms of S.

Product side: 6 atoms of Ag, 2 atoms of Al and 3 atoms of S.

This is an example of a single replacement reaction as the free elemental Al replaces Ag from the Ag₂S to form free elemental Ag  and Al₂S₃ compound.

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