Question

Look at the reaction below. H₂SO₄(aq) + Ca(OH)₂(aq) ---> CaSO₄(aq) + 2H₂O(/) Which substance is the base in the reaction?

A. 2H2O (l)
B. H2SO4 (aq)
C. CaSO4 (aq)
D. Ca(OH)2 (aq)

Answer 1

Option D= Ca(OH)2 (aq)

Explanation

It's a typical neutralization reaction. It will result in the formation of a sparingly soluble salt, calcium sulphate and of course, water.

Chemical equation

Ca(OH)2(aq)+H2SO4(aq)—→ CaSO4(s)+ 2H2O(l)

It is a balanced chemical equation for the reaction between calcium hydroxide and sulfuric acid. One mole of sulfuric acid and one mole of calcium hydroxide will react to give one molecule of calcium sulphate and two molecules of water. Calcium hydroxide is a base and sulfuric acid is an acid. whenever an acid react with base a salt is formed along with water molecule.

Answer 2

Ca(OH)2 (aq) because of elements oxygen and hydrogen