Question

what happen when water react with active metal like CA2​

Answer 1

a chunk of calcium metal is dropped into a beaker of distilled water. After a second or so, the calcium metal begins to bubble vigorously as it reacts with the water, producing hydrogen gas, and a cloudy white precipitate of calcium hydroxide.

Answer 2

$\fbox \pink {A} \fbox \blue {N} \fbox \purple {S} \fbox \green {W} \fbox \red {E} \fbox \orange {R}$

In the following demonstration, a chunk of calcium metal is dropped into a beaker of distilled water. After a second or so, the calcium metal begins to bubble vigorously as it reacts with the water, producing hydrogen gas, and a cloudy white precipitate of calcium hydroxide.