Question

balance 2Mg(s)+o2(g) =2Mgo ​

Answer 1

Answer:

2MG(s)+o2(g)=2Mgo so this is a balanced equation.

Answer 2

2 Mg(s) + O2(g) → a pair of MgO(s)

we know that, chemical element (O) has a valency of -2, and metallic element (Mg) has a valency of +2, the quantitative ratio would be 1:1, & mineral would be painted as MgO. the quantity of atoms of each part on chemical and products aspect should be equal. thus the given equation is already balanced