Question

Which balances the equation Mg + O2 → MgO?
Mg + 2O2 → 4MgO
2Mg + 2O2 → 2MgO
2Mg + O2 → 2MgO
2Mg + 2O2 → 4MgO

Answer 1

Welcome to questioncove,
Do you have any idea what this might be?

Answer 2

Well,
To balance an equation or the equation I should say "Mg + O2 -> MgO" Remember the number of atoms need to be equal to the number of atoms in the actual reactant. So if we make them equal to the reactant we get, Mg + O2 -> MgO the balanced equation would be "C, 2Mg + O2 -> 2MgO.

Answer 3

Thank you