NCERT Q7

Write the balanced chemical equations for the following reactions.

(b) Zinc + Silver nitrate → Zinc nitrate + Silver

 

Answer



  • Zn + AgNO 3   →  Zn(NO 3 ) 2 + Ag

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Zinc

1

1

Silver

1

1

Nitrogen

1

2

Oxygen

3

6

 

To balance Nitrogen and Oxygen,

Multiply AgNO 3 by 2

Zn + 2 AgNO 3   →  Zn(NO 3 ) 2 + Ag

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Zinc

1

1

Silver

2

1

Nitrogen

2

2

Oxygen

6

6

 

To balance Silver,

Multiply Ag by 2

Zn + 2 AgNO 3   →  Zn(NO 3 ) 2 + 2 Ag

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Zinc

1

1

Silver

2

2

Nitrogen

2

2

Oxygen

6

6

 

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

Zn + 2 AgNO 3   →  Zn(NO 3 ) 2 + 2 Ag

 

  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