# Chemical Properties of Acids - Acid + Carbonate

Acids react with metal carbonates produces salt, water and carbon dioxide
Acids + Metal Carbonate  Salt + Water + Carbon Dioxide Gas

Example:
Sulphuric acid + Lime Stone
$H 2 S O 4 +CaC O 3 →CaS O 4 +C O 2 + H 2 O$
Nitric acid + Copper(II) Carbonate
$2HN O 3 +CuC O 3 →Cu ( N O 3 ) 2 +C O 2 + H 2 O$
Example of Experiment

Procedure
1. About 5 cm³ of dilute sulphuric acid is poured into a test tube.
2. One spatula of calcium carbonate powder is added into the test tube.
3. The gas released is passed through lime water as shown in the diagram above.
4. The observations are recorded

Observation
Colourless gas is released. The gas turn lime water chalky.

Inference
1. Sulphuric acid reacts with calcium carbonate.
2. The gas released is carbon dioxide.

Chemical Equation:
$H 2 S O 4 +CaC O 3 →CaS O 4 +C O 2 + H 2 O$