Part 2 Hard Chemistry Questions Paper 1: Chemistry Edexcel IGCSE

Acid + metal

• salt

• water

• hydrogen gas

• carbon dioxide

• metal salt

Acid + base

• salt

• water

• hydrogen gas

• carbon dioxide

• metal salt

Acid + metal carbonate

• salt

• water

• hydrogen gas

• carbon dioxide

• metal salt

Acid + ammonia

• salt

• water

• hydrogen gas

• ammonium salt

• metal salt

Select the true statement

• An alkali is a soluble base

• A base is a soluble alkali

Select the bases

• Metal oxides

• Metal hydroxides

• Metal carbonates

• Ammonia

• Salts

Select the exothermic reactions

• Neutralisation

• Some displacement reactions

• Combustion

• Metal + acid

• Thermal decomposition

Select the endothermic reactions

• Neutralisation

• Some displacement reactions

• Combustion

• Metal + acid

• Thermal decomposition

A substance that increases the rate of reaction, but is chemically unchanged at the end of the reaction

Give two examples of reversible reactions

• The dehydration of copper(II) sulfate

• The effect of heat on ammonium chloride

• Reacting hydrochloric acid with a catalyst

• The incomplete combustion of potassium (IV) dichromate