Balance NH₄Cl + Ca(OH)₂ → CaCl₂ + NH₃ + H₂O
2 NH₄Cl(s) + Ca(OH)₂(s) → CaCl₂(s) + 2 NH₃(g) + 2 H₂O(l)
Balance an equation
2NH₄Cl(s)+Ca(OH)₂(s)→CaCl₂(s)+2NH₃(g)+2H₂O(l)
Balanced
Atoms on each side
| Atom | As writtenleft : right | Balancedleft : right |
|---|---|---|
| N | 1:1 | 2:2 |
| H | 6:5 | 10:10 |
| Cl | 1:2 | 2:2 |
| Ca | 1:1 | 1:1 |
| O | 2:1 | 2:2 |
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, NH₄Cl: put 1 in front of it.
- N: 1 on the left. Put 1 in front of NH₃.
- Cl: 1 on the left. Put 1/2 in front of CaCl₂ (1/2 × 2 = 1).
- Ca: 1/2 on the right. Put 1/2 in front of Ca(OH)₂.
- H: 5 on the left, 3 already on the right. Put 1 in front of H₂O (1 × 2 = 2).
- Clear the fraction: multiply every coefficient by 2.
- Check: N 2 = 2, H 10 = 10, Cl 2 = 2, Ca 1 = 1, O 2 = 2. Balanced.
What happens
It is a double displacement reaction: two compounds swap their ions. Heating ammonium chloride with slaked lime gives ammonia gas, the usual way to make it in the laboratory.
Ammonium chloride and slaked lime: quick answers
What is the balanced equation for ammonium chloride and slaked lime?
2 NH₄Cl(s) + Ca(OH)₂(s) → CaCl₂(s) + 2 NH₃(g) + 2 H₂O(l). The coefficients are 2, 1, 1, 2 and 2. Each side then has 2 N, 10 H, 2 Cl, 1 Ca and 2 O.
What type of reaction is ammonium chloride and slaked lime?
It is a double displacement reaction: two compounds swap their ions. Heating ammonium chloride with slaked lime gives ammonia gas, the usual way to make it in the laboratory.
How do you balance NH₄Cl + Ca(OH)₂ → CaCl₂ + NH₃ + H₂O?
Start with the biggest formula, NH₄Cl: put 1 in front of it. N: 1 on the left. Put 1 in front of NH₃. Cl: 1 on the left. Put 1/2 in front of CaCl₂ (1/2 × 2 = 1). Ca: 1/2 on the right. Put 1/2 in front of Ca(OH)₂. H: 5 on the left, 3 already on the right. Put 1 in front of H₂O (1 × 2 = 2). Clear the fraction: multiply every coefficient by 2. Never change a subscript, because that would change the substance.