Question

Balance this equation​

Answer 1

Balanced equation

2Pb(NO₃)₂⇒2PbO+4NO₂+O₂

Further explanation

Given

Reaction

Pb(NO₃)₂⇒PbO+NO₂+O₂

Required

Balanced equation

Solution

• Give coefficient

Pb(NO₃)₂⇒aPbO+bNO₂+cO₂

• Make equation

Pb, left=1, right=a⇒a=1

N, left=2, right=b⇒b=2

O, left=6, right=a+2b+2c⇒6=1+2.2+2c⇒6=5+2c⇒1=2c⇒c=1/2

The reaction becomes :

Pb(NO₃)₂⇒PbO+2NO₂+1/2O₂ x2

2Pb(NO₃)₂⇒2PbO+4NO₂+O₂