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+HClKCl+MnCl2+Cl2+H2O

MEDIUM
IMPORTANT

Balance the following chemical equation:

KClO3KCl +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 +O2Al2O3

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