Balance Pb(NO₃)₂ → PbO + NO₂ + O₂
2 Pb(NO₃)₂(s) → 2 PbO(s) + 4 NO₂(g) + O₂(g)
Balance an equation
2Pb(NO₃)₂(s)→2PbO(s)+4NO₂(g)+O₂(g)
Balanced
Atoms on each side
| Atom | As writtenleft : right | Balancedleft : right |
|---|---|---|
| Pb | 1:1 | 2:2 |
| N | 2:1 | 4:4 |
| O | 6:5 | 12:12 |
Check atoms
How to balance it, step by step
- Count the atoms of each element on both sides, as written.
- Start with the biggest formula, Pb(NO₃)₂: put 1 in front of it.
- Pb: 1 on the left. Put 1 in front of PbO.
- N: 2 on the left. Put 2 in front of NO₂.
- O: 6 on the left, 5 already on the right. Put 1/2 in front of O₂ (1/2 × 2 = 1).
- Clear the fraction: multiply every coefficient by 2.
- Check: Pb 2 = 2, N 4 = 4, O 12 = 12. Balanced.
What happens
It is a decomposition reaction: one substance breaks down into simpler ones. Lead nitrate breaks down on heating into lead oxide, brown fumes of nitrogen dioxide and oxygen.
Heating lead nitrate: quick answers
What is the balanced equation for heating lead nitrate?
2 Pb(NO₃)₂(s) → 2 PbO(s) + 4 NO₂(g) + O₂(g). The coefficients are 2, 2, 4 and 1. Each side then has 2 Pb, 4 N and 12 O.
What type of reaction is heating lead nitrate?
It is a decomposition reaction: one substance breaks down into simpler ones. Lead nitrate breaks down on heating into lead oxide, brown fumes of nitrogen dioxide and oxygen.
How do you balance Pb(NO₃)₂ → PbO + NO₂ + O₂?
Start with the biggest formula, Pb(NO₃)₂: put 1 in front of it. Pb: 1 on the left. Put 1 in front of PbO. N: 2 on the left. Put 2 in front of NO₂. O: 6 on the left, 5 already on the right. Put 1/2 in front of O₂ (1/2 × 2 = 1). Clear the fraction: multiply every coefficient by 2. Never change a subscript, because that would change the substance.