H2O2 → H2O + O2 as a balanced equation

2H2O2 → O2 + 2H2O

Explanation:

2H2O2

H : 2x2= 4

O : 2x2=4

O2 + 2H2O

H : 2x2=4

O : 2+2=4

First, be sure to count all of H and O atoms on each side of the chemical equation.  Once you know how many of each type of atom you have you can only change the coefficients (the numbers in front of atoms or compounds) in order to balance the equation.

gas and precipitate r the correct answers