Question

When the equation __H2O2 --> __H2O + __O2 Is completely balanced, the sum of all the coefficients will be A) 5 B) 8 C) 3 D) 4

Answer 1

A)5

Step-by-step explanation:

2H2O2 --> 2H2O + 1O2

2+2+1=5

sum=5