Question

H3PO4 + Ca(OH)2 → Ca(H2PO4)2 + H2O

Answer 1

Given question is incomplete. The complete question is as follows.

Balance the following equation:

`H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O`

Answer: The balanced chemical equation is as follows.

`2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O`

Step-by-step explanation:

When a chemical equation contains same number of atoms on both reactant and product side then this equation is known as balanced equation.

For example,
`H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O`

Number of atoms on reactant side:

H = 5

P = 1

O = 6

Ca = 1

Number of atoms on product side:

H = 6

P = 2

O = 9

Ca = 1

In order to balance this equation, we will multiply
`H_3PO_4` by 2 on reactant side and we will multiply
`H_2O` by 2 on product side. Hence, the balanced chemical equation is as follows.

`2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O`