Balanc e the following equation: underline ( )Mg+underline ( )O_(2)arrow underline ( )MgO 1,2,1 1,1,3 2,2,2 2,1,2

To balance the chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. The given equation is: We start by looking at the magnesium (Mg) atoms. There is one Mg atom on the left side and one Mg atom on the right side. Next, we look at the oxygen (O) atoms. There are two oxygen atoms on the left side (in ) and one oxygen atom on the right side (in MgO).To balance the oxygen atoms, we need to have two MgO molecules on the right side, which gives us two oxygen atoms on both sides. This leads to the balanced equation: Now, we have two Mg atoms and two O atoms on both sides of the equation, which means the equation is balanced.