# What are the products of the reaction between silver and a solution of gold(I) nitrate? Between solutions of nitric acid and sodium hydrogen carbonate?

May 21, 2015

The products for the first reaction are $\text{Au(s)" + "AgNO"_3"(aq)}$ ; for the second reaction they are $\text{NaNO"_3"(aq)" + "H"_2"O(l)" + "CO"_2"(g)}$.

#### Explanation:

Reaction 1

$\text{Ag(s)" + "AuNO"_3"(aq)" → "?}$

This reaction looks like a single displacement .

Since $\text{Ag}$ is above $\text{Au}$ in the activity series, the reaction will be

$\text{Ag(s)" + "AuNO"_3"(aq)" → "Au(s)" + "AgNO"_3"(aq)}$

Reaction 2

$\text{HNO"_3"(aq)"+"NaHCO"_3"(aq)" → "?}$

This reaction looks like a double displacement .

More specifically, it is an acid-base neutralization reaction.

It starts as

$\text{HNO"_3"(aq)"+"NaHCO"_3"(aq)" → "H"_2"CO"_3"(aq)" + "NaNO"_3"(aq)}$

But the carbonic acid decomposes immediately to $\text{H"_2"O}$ and ${\text{CO}}_{2}$.

$\text{H"_2"CO"_3"(aq)" → "H"_2"O(l)" + "CO"_2"(g)}$

The overall reaction is

$\text{HNO"_3"(aq)"+"NaHCO"_3"(aq)" → "NaNO"_3"(aq)" + "H"_2"O(l)" + "CO"_2"(g)}$