Question

Write down the names of the elements and their number of atoms in the following

compounds :-

a) Ca(OH)2​

Answer 1

Answer:

Compound  Chemical Formula Elements present  

Quick lime CaO Calcium, Oxygen

Hydrogen bromide  HBr Hydrogen, Bromine

Baking powder NaHCO  

3

​  

 Sodium, Hydrogen, Carbon, Oxygen  

Potassium sulphate K  

2

​  

SO  

4

​  

  Potassium, Sulphur, Oxygen

Explanation:

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Answer 2

Answer:

Calcium Hydroxide

Explanation:

No. of atoms :-

Ca- 1

O2-2

H2- 2