Question

Write the balanced chemical reaction of the following:

If a copper coil is placed into a solution of silver nitrate, silver crystal form on the surface of the copper. Additionally, highly soluble copper (I) nitrate is generated.

• A. Cu(s) + 2AgNO${}_3$(aq) $\to$ Ag(s) + CuNO${}_3$(aq)
• B. 2Cu(s) + AgNO${}_3$(aq) $\to$ Ag(s) + 2CuNO${}_3$(aq)
• C. Cu(s) + AgNO${}_3$(aq) $\to$ Ag(s) + 2CuNO${}_3$(aq)
• D. Cu(s) + AgNO${}_3$(aq) $\to$ Ag(s) + CuNO${}_3$(aq)

Answer 1

The correct option is D Cu(s) + AgNO${}_3$(aq) $\to$ Ag(s) + CuNO${}_3$(aq)

For a balanced chemical reaction,

The number of atoms of a particular element on the left-hand side should be equal to number of atoms of a particular element on the right-hand side

so, balanced chemical equation is

$Cu\left(s\right)+AgN{O}_3\left(aq\right)\to Ag\left(s\right)+CuN{O}_3\left(aq\right)$

Option (D) is correct.