Question

Write and balance the following equations presented to you as written statements:
i. Magnesium carbonate plus hydrochloric acid produces magnesium chloride plus water plus
carbon dioxide
ii. Nitrogen plus hydrogen produces ammonia
iii. Potassium + water → Potassium hydroxide + hydrogen
iv. Calcium oxide is added to water

Answer 1

Answer:

i. MgCO3 + 2HCl → MgCl2 + CO2 + H2O.

ii. N2 + 3H2 → 2NH3

iii. 2K + 2H2O → 2KOH + H2

iv. CaO + H2O → Ca(OH)2

Answer 2

Answer: The method of making the number of atoms of different elements on both sides of the equation equal is known as balancing an equation.

Explanation: The number of atoms of each element on the reactant side should be same as the number of atoms on the product side.