NCERT Q7

Write the balanced chemical equations for the following reactions.

(a) Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water

 

Answer

  • Ca(OH) 2 + CO 2  →  CaCO 3 + H 2 O

 

Name of the element

No. of atoms in reactants

No. of atoms in products

Calcium

1

1

Oxygen

4

4

Hydrogen

2

2

Carbon

1

1

 

The number of atoms of elements in reactants and products are equal. It does not require any further balancing.

 

Since all the elements are balanced the final balanced equation is

Ca(OH) 2 + CO 2  →  CaCO 3 + H 2 O




 

  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