Which of the following is the correct net ionic equation for the reaction between nitrous acid and hydrogen sulfide ion?

Question

Quizplus · Accepted Answer

The balanced molecular equation for the reaction between nitrous acid (HNO2) and hydrogen sulfide ion (HS-) is:

HNO2 + HS- → NO2- + H2S

To write the net ionic equation, we need to identify the ions that are aqueous and write them as ions, omitting the spectator ions (ions that do not participate in the reaction):

H+ (aq) + NO2- (aq) + HS- (aq) → H2S (aq)

The net ionic equation for the reaction is:

H+ + NO2- + HS- → H2S

Note that the nitrous acid (HNO2) is a weak acid and does not completely dissociate in aqueous solution, so we can write it as H+ and NO2- in the net ionic equation.

Which of the Following Is the Correct Net Ionic Equation