1. The problem statement, all variables and given/known data Consider the reaction between Sulfiric acid and zinc: H2SO4 + Zn -> What would be the ionic equation for this reaction? 2. Relevant equations 3. The attempt at a solution In solution it would be H2+ + (SO4)2- + Zn -> Zn2+ + 2e- + (SO4)2- + H2+ -> Zn2+ + H2 (in ionic form) but instead the answers gave Zn2+ + H2O where did the O come from?