Balancing a Chemical Equation

Author:R P Rana
8th ICSE
IMPORTANT

Important Questions on Balancing a Chemical Equation

HARD
IMPORTANT

Explain the following term:

Limitation of a chemical equation.

MEDIUM
IMPORTANT

Limitation of chemical equation is

EASY
IMPORTANT

The symbol of the element nitrogen is:

HARD
IMPORTANT

Balance the following chemical equation:

KMnO4+HCl→KCl+MnCl2+Cl2↑+H2O

MEDIUM
IMPORTANT

Balance the following chemical equation:

KClO3→KCl +O2↑

MEDIUM
IMPORTANT

Balance the following chemical equation:

MnO2+HCl →MnCl2 +Cl2↑+H2O

MEDIUM
IMPORTANT

Balance the following chemical equation:

NaOH +H2SO4 →Na2SO4 +2H2O

MEDIUM
IMPORTANT

Balance the following chemical equation:

Al +O2→Al2O3

MEDIUM
IMPORTANT

Write the balanced chemical equation for the following word equation:

Zinc + Steam → Zinc oxide + Hydrogen

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Sodium phosphate + Calcium nitrate → Sodium nitrate + Calcium phosphate

MEDIUM
IMPORTANT

Write a balanced chemical equation for the following word equation:

Carbon dioxide + Oxygen → Carbon monoxide

“Note: This question given in the book seems to have error and the modified question should be as given below.”

Carbon + Oxygen → Carbon monoxide.

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Sodium + Water → Sodium hydroxide + Hydrogen

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Zinc Sulphide + Oxygen → Zinc oxide + Sulphur dioxide

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Ammonium carbonate → Ammonia + Carbon dioxide + Water

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Iron + Steam → Iron oxide + Hydrogen
                                (ferric)

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Carbon + Nitric acid → Carbon dioxide + Nitrogen dioxide + Water
                   (conc.)

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Nitrogen + Oxygen → Nitric oxide

HARD
IMPORTANT

Write the balanced chemical equation for the following word equation:

Potassium nitrate → Potassium nitrite + Oxygen