Select the equations that are correctly balanced.
AH2O + 2O2 → H2O2
BFe2O3 + 3H2 → 2Fe + 3H2O
CAl + 3Br2 → AlBr3
DCaCO3 → CaO + CO2
AH2O + 2O2 → H2O2
BFe2O3 + 3H2 → 2Fe + 3H2O
CAl + 3Br2 → AlBr3
DCaCO3 → CaO + CO2