The above equation describes the chemical reaction between calcium (Ca) and water (H2O), resulting in the formation of calcium hydroxide (Ca(OH)2) and hydrogen (H2).
- Reaction conditions
This reaction typically occurs at room temperature. The calcium should be in its pure form, while the water must be pure water. The reaction will occur more strongly if the water is in the form of steam.
- Reaction process
When calcium comes into contact with water, it forms calcium hydroxide and hydrogen. Calcium hydroxide is a white solid, while hydrogen is a colorless, odorless gas.
- Observed phenomena
As the reaction progresses, you will see the calcium gradually consumed. At the same time, hydrogen gas is generated, forming bubbles on the liquid surface. The final result of the reaction is the formation of a white layer of calcium hydroxide on the liquid surface.