Final Semester Practice Exam

Ammonium carbonate is an example of

• molecular compound

• ionic compound

• metallic compound

• covalent compound

What is the correct name for the compound MgCl₂?

• magnesium dichloride

• magnesium(II) chloride

• magnesium chloride

• none of the above

What is the correct formula for the compound PbSO₄?

• lead sulfite

• lead (IV) sulfite

• lead (II) sulfite

• lead (II) sulfate

What is the formula for compound aluminum chromate?

• Al₂(CrO₄)₃

• Al₄(CrO₄)₃

• Al₃(CrO₄)₂

• Al₂(Cr₂O₇)₃

What is the charge of the ion X in the formula SnX₄ if the metal is Tin(IV).

• +1

• -1

• +2

• -2

Which of the following compounds is a covalent compound?

• NO₂

• PbS

• NaCN

• both A & B

Which type of compound demonstrates the strongest electrical conductivity when dissolved in water?

• nonpolar covalent

• ionic

• polar covalent

• all of these

Lewis Dot Structures are normally drawn for

• ionic compounds

• metallic compounds

• covalent compounds

• none of the above

How many lone pairs of electrons does carbon monoxide contain?

• none

• one

• two

• three

Which compound correctly expresses the way that aluminum bonds with oxygen

• AlO

• Al₂O₂

• Al₂O₃

• AlO₂