KNO2 + O2--> KNO3
Coefficients?

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

2KNO₂ + O2⇒ 2KNO₃

the correct answer would be b) volume versus temperature, because they are also directly proportional.

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