Question

Which of the following is the correctly balanced chemical equation for the reaction of Ca(OH)2 and HNO3?

Answer 1

Explanation:

The reaction between calcium hydroxide and nitric acid is as follows.

  $Ca(OH)_{2} + HNO_{3} \rightarrow Ca(NO_{3})_{2} + H_{2}O$

Number of reactant atoms are as follows.

• Ca = 1
• O = 4
• H = 3
• N = 1

Number of product atoms are as follows.

• Ca = 1
• O = 4
• H = 2
• N = 3

To balance the given chemical equation, multiply $HNO_{3}$ by 2 on reactant side and multiply $H_{2}O$ by 2 on the product side.

Therefore, the balanced chemical equation will be as follows.

    $Ca(OH)_{2} + 2HNO_{3} \rightarrow Ca(NO_{3})_{2} + 2H_{2}O$