IG Chapter 7

When the polyatomic ion in an acid ends in -ite, the root name of the polyatomic ion is followed the ending -_____.

• ide

• ic

• ous

• ite

Why do farmers add lime to soil?

• It acts as a fertiliser.

• It adds nitrogen to the soil.

• It decreases the pH of the soil.

• It increases the pH of the soil.

Which of the following is NOT an acid?

• HCl

• CH₃COOH

• C₂H₆

• H₂SO₄

When magnesium ribbon is added to dilute hydrochloric acid, the followings will occur EXCEPT

• Gas bubbles are given off and a "pop" sound is heard when testing with a burning splint.

• The metal ribbon disolves to form a colourless solution.

• The salt form is magnesium chloride.

• The reaction is called neutralisation.

Which of the following metals has NO reaction with a dilute acid?

• Copper

• Zinc

• Calcium

• Iron

Which of the following gas will be formed when sodium hydrogencarbonate reacts with dilute hydrochloric acid?

• Hydrogen

• carbon dioxide

• Oxygen

• Nitrogen

Identify the correct formulae for the three common lab acids

• H₂SO₄, HNO₂, HCl

• HCl, HNO₃, H₂SO₃

• H₂SO₄, HCl, HNO₃

• HNO₃, HCl₂, H₂SO₄

An alkali contains ............ ions

• H⁺

• CO₃^2-

• OH^-

• O^2-

The best definition of an acid is

• a chemical that tastes sour

• a chemical that is corrosive

• a chemical that donates H⁺ ions (a proton donor)

• a chemical that donates OH^- ions (a hydroxide donor)

The formulae of the salt formed when sulfuric acid reacts with aluminium hydroxide is...

• Al₂(SO₄)₃

• Al₃(SO₄)₂

• AlSO₄

• Al₂SO₄