The balanced equation
2KNO₂ + O2⇒ 2KNO₃
Given
Reaction
KNO₂ + O2⇒ KNO₃
Required
Balanced equation
Solution
Give a coefficient
aKNO₂ + bO2⇒ KNO₃
Make an equation
K, left = a, right=1⇒a=1
O, left = 2a+2b, right = 3⇒2a+2b=3⇒2.1+2b=3⇒2b=1⇒b=1/2
The equation becomes :
KNO₂ + 1/2O2⇒ KNO₃ x2
