Balanced and Unbalanced Equations

Author:Subject Experts
10th CBSE
IMPORTANT

Important Questions on Balanced and Unbalanced Equations

MEDIUM
IMPORTANT

Write the balanced chemical equation with state symbols for the following reaction:
Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.

HARD
IMPORTANT

Write the balanced chemical equation with state symbols for the following reaction:
Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.

MEDIUM
IMPORTANT

Balance the following equations:

(i) CH4g + O2gCO2g + H2Og

(ii) Als + HClaqAlCl3aq + H2g

EASY
IMPORTANT

Write the balanced equation for the following reaction :

Zinc carbonatesZinc oxides + Carbon dioxideg

MEDIUM
IMPORTANT

A large piece of zinc metal is placed in copper II sulphate, CuSO4 solution. The blue solution becomes colourless as copper metal falls to the bottom of the container. The resulting solution contains zinc sulphate, ZnSO4. Write the balanced formula unit, and net ionic equations for the reaction.

EASY
IMPORTANT

C6H12O6aq+6O2gXCO2g+6H2Ol+Energy

The value of X in the balance chemical equation is:

EASY
IMPORTANT

Which of the following chemical equations is an unbalanced one?

MEDIUM
IMPORTANT

Write the balanced equations for the following chemical reactions.

Sodium + water sodium hydroxide + hydrogen

MEDIUM
IMPORTANT

Write the balanced equations for the following chemical reactions.

Barium chloride + aluminium sulphate barium sulphate + aluminium chloride

EASY
IMPORTANT

Write the balanced equation for the following chemical reaction:

  • Hydrogen + chlorine hydrogen chloride