Question

What is the net ionic equation for the reaction below?

2AgNO₃(aq) + Na₂S(aq) —— Ag₂S(s) + 2NaNO₃(aq)
o 2Ag⁺ (aq) + S²⁻(aq) → Ag₂S(s)
o 2AgNO₃(aq) + Na2S(aq) → Ag₂S(s) + 2NaNO₃(aq)
o 2Na⁺(aq) + S²⁻ (aq) →Na₂S(s)
o Na⁺ (aq) + NO⁻₃(aq) → NaNO₃(aq)
o Ag⁺ (aq) + NO⁻₃(aq) → AgNO₃(aq)

Answer 1

The net ionic equation for the reaction between silver nitrate and sodium sulfide, producing silver sulfide and sodium nitrate, is 2Ag+ (aq) + S2−(aq) → Ag2S(s), excluding the spectator ions sodium and nitrate.

Step-by-step explanation:

The net ionic equation for the reaction 2AgNO3(aq) + Na2S(aq) —— Ag2S(s) + 2NaNO3(aq) is 2Ag+ (aq) + S2−(aq) → Ag2S(s).

This equation shows only the species that directly participate in the reaction, which are silver ions (Ag+) and sulfide ions (S2−), forming silver sulfide (Ag2S) as a precipitate. Both the sodium ions (Na+) and the nitrate ions (NO3−) are spectator ions and do not appear in the net ionic equation because they go through the reaction unchanged.