The chemical formula of quicklime is

Important Questions on Chemical Substances and Processes

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 1

What are elements?

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 2

Give the chemical symbol of iron and chlorine.

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 3

Write the chemical formulae of the following compounds: Aluminium oxide.

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 3

Write the chemical formulae of the following compounds: Zinc acetate.

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 4

Balance the following equation: $\mathrm{Ca}(\mathrm{OH}{)}_2+\mathrm{HCl}\to {\mathrm{CaCl}}_2+{\mathrm{H}}_2\mathrm{O}$.

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 5

What does a chemical equation represent?

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 6

What are reactants and products in a chemical equation?

EASY

7th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 7

Give one example of a combination reaction.