Question

pls tell the answer l. I'll mark brainliest.​

Answer 1

Answer:

The right answer is compound combination reaction and chemical equation is CaO(s) + H2O (l) → Ca(OH)2(s)

Explanation:

This reaction occurs when water is added to dry portland cement to make concrete, and heat evolution of energy as heat is evident because the mixture becomes warm.

Answer 2

When calcium oxide (commonly known as quick lime) reacts with water, then it combines with water and forms calcium hydroxide(commonly known as slaked lime). The product of this reaction iscalcium hydroxide, also known as slaked lime. This reaction is an example of combination reaction.

Cao+h20>> Ca(oh) 2