Write the balanced equation for the following chemical reactions.

(i) Hydrogen + Chlorine → Hydrogen chloride

 

 

Answer

(i) Hydrogen + Chlorine → Hydrogen chloride

 

The skeletal chemical equation of the above reaction is

H 2 + Cl →  HCl

 

Element Name

No of Atoms in Reactant

No of Atoms in Product

Hydrogen

2

1

Chlorine

1

1

 

  1. Number of atoms of Hydrogen in reactants number of atoms of Hydrogen in products

 

To balance number of Hydrogen,

We multiply the products by 2

The chemical equation becomes

H 2 + Cl →  2 HCl



Element Name

No of Atoms in Reactant

No of Atoms in Product

Hydrogen

2

2

Chlorine

1

2

 

  1. Now,

 

Number of atoms of Hydrogen in reactants = number of atoms of Hydrogen in products

But, Number of atoms of Chlorine in reactants number of atoms of Chlorine in products

 

To balance number of Chlorine,

We multiply the Cl atom in reactants by 2

The chemical equation becomes

 

H 2 + 2 Cl →  2 HCl

 

Now, 

 

Element Name

No of Atoms in Reactant

No of Atoms in Product

Hydrogen

2

2

Chlorine

2

2

 

Now, all the elements are balanced and the balanced equation is

H 2 + 2 Cl →  2 HCl

 

H 2 + 2 Cl →  2 HCl

  1. Class 10
  2. Chapter 1 Class 10 - Chemical Reactions and Equations (Term 1)

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo