Balance Ca(OH)₂ + CO₂ → CaCO₃ + H₂O
Ca(OH)₂(aq) + CO₂(g) → CaCO₃(s) + H₂O(l)
Balance an equation
Ca(OH)₂(aq)+CO₂(g)→CaCO₃(s)+H₂O(l)
Balanced
Atoms on each side
| Atom | As writtenleft : right | Balancedleft : right |
|---|---|---|
| Ca | 1:1 | 1:1 |
| O | 4:4 | 4:4 |
| H | 2:2 | 2:2 |
| C | 1:1 | 1:1 |
Check atoms
How to balance it, step by step
- Count each element on both sides. Every count already matches, so no coefficients are needed.
- Check: Ca 1 = 1, O 4 = 4, H 2 = 2, C 1 = 1. Balanced.
What happens
It is a neutralisation reaction: an acid, or an acidic oxide, reacts with a base to give a salt and water. Carbon dioxide turns lime water milky, because a white precipitate of calcium carbonate forms. This is the test for carbon dioxide.
Carbon dioxide and lime water: quick answers
What is the balanced equation for carbon dioxide and lime water?
Ca(OH)₂(aq) + CO₂(g) → CaCO₃(s) + H₂O(l). It is already balanced as written, so every coefficient is 1. Each side then has 1 Ca, 4 O, 2 H and 1 C.
What type of reaction is carbon dioxide and lime water?
It is a neutralisation reaction: an acid, or an acidic oxide, reacts with a base to give a salt and water. Carbon dioxide turns lime water milky, because a white precipitate of calcium carbonate forms. This is the test for carbon dioxide.
How do you balance Ca(OH)₂ + CO₂ → CaCO₃ + H₂O?
Count the atoms of each element on both sides: 1 Ca, 4 O, 2 H and 1 C. They already match, so no coefficients are needed.