Question

When a solution of NaI reacts with a solution of AgNO3, what is the net ionic equation?

Na+ (aq) + NO3- (aq) → NaNO3 (s)


Na (aq) + NO3 (aq) → NaNO3 (s)


No reaction


Ag+ (aq) + Cl- (aq) → AgCl (s)

Answer 1

Ag⁺(aq) + I⁻(aq) → AgI(s)

Step-by-step explanation:

Net ionic equation is a way to write a chemical equation in which you are listing only the species that are participating in the reaction.

In the reaction:

AgNO₃(aq) + NaI(aq) → AgI(s) + NaNO₃(aq).

The ionic equation is:

Ag⁺(aq) + NO₃⁻(aq) + Na⁺(aq) + I⁻(aq) → AgI(s) + Na⁺(aq) + NO₃⁻(aq).

Now, listing only the species that are participating in the reaction:

Ag⁺(aq) + I⁻(aq) → AgI(s)