SSLG REVIEWER: SCIENCE 9

Which of the following is NOT a characteristic of ionic compounds?

• High melting points

• Brittle

• Low solubility in water

• Conduct electricity when molten or dissolved

Ionic compounds are formed by the:

• Sharing of electrons

• Transfer of electrons

• Attraction of protons

• Repulsion of electrons

The electrostatic force of attraction between oppositely charged ions is called:

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

Which of the following is an example of an ionic compound?

• Methane (CH₄)

• Water (H₂O)

• Sodium chloride (NaCl)

• Carbon dioxide (CO₂)

What type of ions are formed by metals?

• Anions

• Cations

• Neutral ions

• Polyatomic ions

What type of ions are formed by nonmetals?

• Anions

• Cations

• Neutral ions

• Polyatomic ions

The formula unit of an ionic compound represents:

• The simplest whole-number ratio of ions

• The actual number of ions in a crystal

• The molecular weight of the compound

• The number of atoms in a molecule

Which of the following properties is NOT typically associated with ionic compounds?

• Crystalline structure

• Ductility

• High melting point

• Electrical conductivity in solution

Ionic compounds generally have:

• Low melting points

• High melting points

• Variable melting points

• No melting point

Which of the following is used as a common table salt?

• Potassium chloride (KCl)

• Sodium chloride (NaCl)

• Calcium chloride (CaCl₂)

• Magnesium chloride (MgCl₂)