Which of the following is a balanced chemical equation

H2O2 → H2O + O2

2 Fe2O3 + 3 C → 4Fe + 3CO2

SO2 + O2 + 2H2O →4H2SO4

2 Mg + HCl →MgCl2 + H2

not sure

3 answers

Think on them. I will check your answers. This is not rocket science.
whatever nvm
Stacyy09, you can check these yourself. Check atoms and left and right of the arrow and if the left side and right side don't agree the equation isn't balanced.