Acids and Alkalis: Advanced!

Select the correct statement.

• An acid is a substance which produces chloride ions when it dissolves in water.

• An acid is a substance which produces hydrogen ions when it dissolves in water.

• An acid is a substance which produces hydroxide ions when it dissolves in water.

• An acid is a substance which produces sodium ions when it dissolves in water.

Select the correct statement.

• An alkali is a substance which produces chloride ions when it dissolves in water.

• An alkali is a substance which produces hydrogen ions when it dissolves in water.

• An alkali is a substance which produces hydroxide ions when it dissolves in water.

• An alkali is a substance which produces sodium ions when it dissolves in water.

Select the correct statement.

• A strong acid completely ionises in water.

• A weak acid completely ionises in water.

• A strong acid partially ionises in water.

• A weak acid partially ionises in water.

Select the correct statement.

• Reactions with strong acids are irreversible.

• Reactions with strong acids are reversible.

• Reactions with weak acids are irreversible.

• Reactions with weak acids are not reversible.

Look at the picture. Select the correct product(s) for the reaction between iron oxide and hydrochloric acid.

• lithium sulphate + water

• litihium oxide + sulphuric acid

• iron oxide + hydrochlroic acid

• iron chloride

Look at the picture. Select the correct reactant(s) for the reaction between lithoum oxide and sulphuric acid.

• lithium sulphate + water

• litihium oxide + sulphuric acid

• iron oxide + hydrochlroic acid

• iron chloride

Select the correct meaning for this symbol in a word equation (⇌)

• diluted

• concentrated

• irreversible

• reversible

Coffee has a pH of about 4. Select the best conclusion.

• Coffee is an acid.

• Coffee is an alkali.

• Coffee is a weak acid.

• Coffee is a medium-strength acid.

Select the correct conclusion.

• Concentrated acids have a large number of dissolved acid particles per unit.

• Concentrated acids have a small number of dissolved acid particles per unit.

• Dilute acids have a large number of dissolved acid particles per unit.

• Dilute acids have a small number of dissolved alkali particles per unit.

In a neutralisation reaction water and a .......... is always produced.