Question

Which chemical equation is balanced?

2PCl5 + 2H2O → 2HCl + H3PO4




PCl5 + H2O → HCl + H3PO4




PCl5 + 3H2O → 5HCl + H3PO4




PCl5 + 4H2O → 5HCl + H3PO4

Answer 1

i think the answer is PCl5 + 4H2O → 5HCl + H3PO4

Answer 2

Answer: Option (d) is the correct answer.

Step-by-step explanation:

An equation will be said balanced equation when there are equal number of atoms on both reactant and product side.

For example,
`PCl_(5) + 4H_(2)O \rightarrow 5HCl + H_(3)PO_(4)`

Number of atoms on reactant sides are as follows.

P = 1

Cl = 5

H = 8

O = 4

Number of atoms on product side are as follows.

P = 1

Cl = 5

H = 8

O = 4

Thus, there are equal number of atoms on both reactant and product side. Hence, this equation is balanced.