Ch 7 Chemistry Quiz

The basis of an ionic bond is the

• sharing of an electron pair.

• electrical attraction between oppositely charged ions.

• absorption of energy.

• absorption of water into their solid structures.

Elements tend to gain or lose electrons in order to acquire the electron configuration of a

• halogen.

• transition metal.

• noble gas.

• nonmetal.

How are chemical formulas of binary ionic compounds generally written?

• cation on left, anion on right

• anion on left, cation on right

• Roman numeral first, then anion, then cation

• subscript first, then ions

Ionic compounds

• have high melting points.

• are brittle.

• are good conductors in their liquid state.

• all of the above.

A double covalent bond consists of

• two pairs of shared electrons.

• two shared electrons.

• six shared electrons.

• unshared electrons.

Which of the following is the name given to the pairs of valence electrons that do not participate in bonding in diatomic oxygen molecules?

• unvalenced pair

• outer pair

• inner pair

• unshared pair

What is the name of the compound with the formula PCl₃?

• Phosphorus trichloride

• Phosphorus pentachloride

• Phosphorus dichloride

• Phosphorus chloride

What is the name of the compound with the formula CCl₄?

• Carbon tetrachloride

• Carbon trichloride

• Carbon dichloride

• Carbon chloride

What is the formula for copper(II) iodide?

• CuI₂

• CuI

• Cu₂I

• Cu₂I₂

What is the formula for dihydrogen monosulfide?

• H₂S

• H₂SO₄

• H₂SO₃

• H₂O