Question

5. Calcium reacts with cold water and forms calcium hydroxide and
hydrogen gas. true/false​

Answer 1

Answer:

yes it's true calcium reacts vigorously with cold water to form calcium hydroxide.

Answer 2

on my point of view :

Calcium, for example, reacts fairly vigorously with cold water in an exothermic reaction. Bubbles of hydrogen gas are given off, and a white precipitate (of calcium hydroxide) is formed, together with an alkaline solution (also of calcium hydroxide - calcium hydroxide is slightly soluble)

so, it forms calcium hydroxide is true and it given off the hydrogen gas. so, I am so confused sorry.

anyway I think the above para helps u ...