Understanding Salts and Ionic Compounds

What is a salt in terms of its chemical composition?

• A compound that is always acidic

• An ionic compound formed by replacing hydrogen in an acid with metal or ammonium ions

• A compound with only negative ions

• A compound with only positive ions

Which of the following is an example of a salt formed by replacing hydrogen in nitric acid?

• Sodium chloride

• Sodium nitrate

• Calcium oxide

• Ammonium hydroxide

Why is calcium oxide not considered a salt?

• It is electrically charged

• It contains ammonium ions

• The negative ion does not come from an acid

• It is not an ionic compound

Which acid is the source of the sulfate ion in sulfate salts?

• Hydrochloric acid

• Carbonic acid

• Nitric acid

• Sulfuric acid

What is the chemical formula for sodium sulfate?

• NaSO3

• Na2S

• NaSO4

• Na2SO4

Which of the following is not a salt?

• Barium nitrate

• Zinc sulfate

• Tin nitrate

• Aluminium oxide

What is the charge of the sulfate ion?

• 1-

• 2+

• 2-

• 3-

Which compound is an example of a non-salt ionic compound?

• Calcium oxide

• Ammonium nitrate

• Magnesium sulfate

• Sodium chloride

What is the main reason hydroxides are not considered salts?

• They are always neutral

• They contain metal ions

• Their negative ions do not originate from acids

• They are not ionic compounds

Which of the following is a characteristic of salts?

• They are always acidic

• They are always formed from oxides

• They are always basic

• They are chemically and electrically neutral