Balance the following chemical equation: Al + O 2 → Al 2 O 3

The given chemical equation represents is the combustion reaction of aluminium with oxygen which produces aluminium oxide. The balanced equation for the reaction can be given as, 4 Al s + 3 O 2 g → 2 Al 2 O 3 s

Balance the following chemical equation: NaOH + H 2 SO 4 → Na 2 SO 4 + 2 H 2 O

The given chemical equation represents the neutralisation reaction of sodium hydroxide and sulphuric acid. The balanced chemical equation for the reaction can be given as, 2 NaOH aq + H 2 SO 4 aq → Na 2 SO 4 aq + 2 H 2 O l

Balance the following chemical equation: MnO 2 + HCl → MnCl 2 + Cl 2 ↑ + H 2 O

The equation given here represents the reaction between manganese dioxide and hydrochloric acid. In a balanced chemical equation, the number of atoms of each element on the both sides should be equal. Therefore, the balanced chemical equation can be given as, MnO 2 + 4 HCl → MnCl 2 + 2 H 2 O + Cl 2 ↑

Balance the following chemical equation: KClO 3 → KCl + O 2 ↑

The given equation represents the decomposition reaction of potassium chlorate to give potassium chloride and oxygen gas. The balanced equation for the reaction can be given as, 2 KClO 3 → 2 KCl + 3 O 2 ↑

Balance the following chemical equation: KMnO 4 + HCl → KCl + MnCl 2 + Cl 2 ↑ + H 2 O

The given equation represents the reaction of potassium permanganate with hydrochloric acid. A balanced chemical equation should have the same number of atoms of each element on both sides of the equation. Therefore, the given equation can be balanced as, 2 KMnO 4 + 16 HCl → 2 KCl + 2 MnCl 2 + 5 Cl 2 ↑ + 8 H 2 O

E M B I B E

Its All About Science - Chemistry>Chapter 5 - Language of Chemistry>Check Point

R P Rana Solutions for Chapter: Language of Chemistry, Exercise 2: Check Point

Author:R P Rana

R P Rana Science Solutions for Exercise - R P Rana Solutions for Chapter: Language of Chemistry, Exercise 2: Check Point

Attempt the practice questions on Chapter 5: Language of Chemistry, Exercise 2: Check Point with hints and solutions to strengthen your understanding. Its All About Science - Chemistry solutions are prepared by Experienced Embibe Experts.