Question

Which is a spectator ion in the reaction between Na2CO3(aq) and HNO3(aq)?

Answer 1

Answer: The spectator ions are $NO_3^-\text{ and }Na^+$

Explanation:

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

The given chemical equation is:

$Na_2CO_3+2HNO_3\rightarrow 2NaNO_3+H_2O+CO_2$

The ionic equation for the above reaction follows:

$2Na^+(aq.)+CO_3^{2-}(aq.)+2H^+(aq.)+2NO_3^-\rightarrow 2Na^+(aq.)+2NO_3^-(aq.)+CO_2(g)+H_2O(l)$

The net ionic equation follows:

$CO_3^{2-}(aq.)+2H^+(aq.)+\rightarrow CO_2(g)+H_2O(l)$

The ions which are present on both the sides of the equation are sodium and nitrate ions.

Hence, the correct answer are $NO_3^-\text{ and }Na^+$

Answer 2

If you need help reading it then ask away, the two answers end up being, 2Na, and 2NO3