Halodragonslayer Halodragonslayer 02-11-2021 Physics contestada Which balances the equation Mg + O2 → MgO? Mg + 2O2 → 4MgO 2Mg + 2O2 → 2MgO 2Mg + O2 → 2MgO 2Mg + 2O2 → 4MgO