ValeneRozier
Answered

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Which chemical equation is balanced? A) 2PCl5 + 2H2O → 2HCl + H3 PO4 B) PCl5 + H2O → HCl + H3 PO4 C) PCl5 + 3H2O → 5HCl + H3 PO4 D) PCl5 + 4H2O → 5HCl + H3 PO4

Sagot :

lulu1991
The answer is D. The chemical equation is balanced means that the atom number of each elements from the left side and right side is equal. The quick method is to check the P and Cl.

Answer: Option (D) is the correct answer.

Explanation:

A balanced equation is defined as the equation which contains same number of atoms on both reactant and product side.

For example, [tex]PCl_{5} + 4H_{2}O \rightarrow 5HCl + H_{3}PO_{4}[/tex]

Number of atoms on reactant side 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

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

Thus, we can conclude that out of the given options [tex]PCl_{5} + 4H_{2}O \rightarrow 5HCl + H_{3}PO_{4}[/tex], this chemical equation is balanced.

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