Question

How to balance 4NaNO3 + 5PbO → 8Pb(NO3)2 + 7Na2O with coefficients?

Answer 1

The balanced equation

2NaNO₃ + PbO → Pb(NO₃)₂ + Na₂O

Further explanation

Given

Reaction

NaNO3 + PbO → Pb(NO3)2 + Na2O

Required

Balanced equation

Solution

• 1. Give coefficient

aNaNO₃ + bPbO → Pb(NO₃)₂ + cNa₂O(Pb(NO₃)₂ ⇒coefficient 1 for the most complex compounds)

• 2. Make an equation

N, left=a, right=2⇒a=2

Na, left = a, right=2c⇒a=2c⇒2=2c⇒c=1

Pb, left = b, right=1⇒b=1

The equation becomes :

2NaNO₃ + PbO → Pb(NO₃)₂ + Na₂O