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

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,

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 , this chemical equation is balanced.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.