Describing Reactions… in Solution
Molecular: This gives the overall reaction.
2AgNO3 (aq) + Na2S (aq) -----> Ag2S (s) + 2NaNO3 (aq)
Complete Ionic: This gives the equation including all ions in solution.
2Ag+ (aq) + 2NO3- (aq) + 2Na+ (aq) + S2- (aq) ----> Ag2S (s) + 2Na+ (aq) + 2NO3- (aq)
Net Ionic: This gives information on those species that undergo a chemical change. Ions that appear in the same form on both sides of the complete ionic equation are called spectator ions, and are not included in the net ionic equation.
2Ag+ (aq) + S2- (aq) ----> Ag2S (s)