Percent Composition and Molecular Formula Answers

Consider this reaction: 2H+ + CO32- → H2O + CO2. Identify each of the following as a product, a reactant, or a coefficient.CO32-:

H2O:

CO2:

The 2 in front of H+:

Identify each of the following reactions as balanced or unbalanced.CH4+ 2O2 → CO2 + 2H2O:

CaCl2+ 2AgNO3 → Ca(NO3)2 + 2AgCl:

3Fe3O4 + 4Al → 9Fe + 4Al2O3: