Chemical reactions

What class are you in?

• 11X3A
• 11X3B
• 11Y3A
• 11Y3B
• Other

Acids can react with bases. Which type of reaction happens when an acid reacts with a base?

• Decomposition
• Neutralisation
• Polymerisation
• Combustion

A selection of metals were added to dilute acid. The temperature of the reaction was recorded before and after the metal was added. Which metal is the most reactive?

• A
• B
• C
• D

Acid + metal -->

• salt + water
• salt + carbon dioxide
• salt + hydrogen
• salt + water + carbon dioxide

Acid + alkali -->

• salt + water
• salt + carbon dioxide
• salt + hydrogen
• salt + water + carbon dioxide

Acid + base -->

• salt + water
• salt + carbon dioxide
• salt + hydrogen
• salt + water + carbon dioxide

Acid + metal carbonate -->

• salt + water
• salt + carbon dioxide
• salt + hydrogen
• salt + water + carbon dioxide

What will happen if we add magnesium to 1 mol sulphuric acid?

• Nothing
• Hydrogen gas will be produced and the metal will dissolve as a salt is formed
• Carbon dioxide gas will be given off and the metal will dissolve as a salt is formed
• The metal will disappear and the solution will turn blue

What will happen if we add gold to 1 mol sulphuric acid?

• Nothing
• Hydrogen gas will be produced and the metal will dissolve as a salt is formed
• Carbon dioxide gas will be given off and the metal will dissolve as a salt is formed
• The metal will disappear and the solution will turn blue

What will happen if we add copper to water?

• Nothing
• Hydrogen gas will be produced and the metal will dissolve as a salt is formed
• Carbon dioxide gas will be given off and the metal will dissolve as a salt is formed
• The solid will disappear and the solution will turn blue