lilywaesche lilywaesche 12-01-2023 Chemistry contestada Can someone balance these equations and show work and not just the answer please? 1. SO2 + H2 → H2S + H2O 2. CaCl2 + Na2CO3 → CaCO3 + NaCl 3. HNO3 → NO2 + H2O + O2 4. Al + H2SO4 → Al2(SO4)3 + H2