Question

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

Answer 1

the 2nd option is right...

THANKS!!

Answer 2

Answer: Option (d) is the correct answer.

Explanation:

A balanced equation is an equation in which the number of atoms on reactant side are equal to the number of atoms on product side.

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

Number of atoms on reactant side are as follows.

• Ca = 1

• O = 5

• H = 3

• N = 1

Number of atoms on product side are as follows.

• Ca = 1

• O = 7

• H = 2

• N = 2

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

Hence, the balanced chemical equation will be as follows.

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