Question

On a separate sheet of paper balance the following equation:Mn203-->Mn +02What is the coefficient of MnO3 after the equation is balanced?

Answer 1

The coefficient of Mn2O3 after balancing = 2

Step-by-step explanation

Given: Mn2O3 ----> Mn + O2

Required: Balance the equation

Left side Right side

Mn = 2 Mn = 1

O = 3 O = 2

Multiply Mn by 4 on the right side, then put 2 infront of Mn on the left side. Now you have 6 oxygens on the left, therefore multiply O by 3 on the right.

Left side Right side

Mn = 2 x 2 = 4 Mn = 1 x 4 = 4

O = 3 x 2 = 6 O = 2 x 3 = 6

Therefore the balanced equation is:

`2Mn_2O_3\rightarrow4Mn\text{ + 3O}_2`