NCERT Q7

Write the balanced chemical equations for the following reactions.

(c) Aluminium + Copper chloride → Aluminium chloride + Copper

 

Answer

 

(c)  Al + CuCl 2 → AlCl 3 + Cu

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Aluminium

1

1

Copper

1

1

Chlorine

2

3

 

To balance Chlorine,

Multiply CuCl 2 by 3 and AlCl 3 by 2

Al + 3 CuCl 2 2 AlCl 3 + Cu

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Aluminium

1

2

Copper

3

1

Chlorine

6

6

 

To balance Aluminium,

Multiply Al by 2

To balance Copper,

Multiply Cu by 3

2 Al + 3 CuCl 2 2 AlCl 3 + 3 Cu

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Aluminium

2

2

Copper

3

3

Chlorine

6

6

 

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

2 Al + 3 CuCl 2 2 AlCl 3 + 3 Cu

 

  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