3.5-Names and Formulas of Compounds - 2

A binary compound is a compound composed of:

• Three or more elements

• A metal and water

• Only two elements

• A compound and an element

The name of a binary ionic compound starts with the name of the:

• Anion

• Cation

• Molecule

• Nonmetal

In naming, the cation is followed by the name of the:

• Ion

• Molecule

• Anion

• Element

The formula for calcium chloride is:

• CaCl

• CaCl₂

• Ca₂Cl

• Ca₂Cl₃

MnO₂ is named ____ using the Stock system.

• Manganese dioxide

• Manganese oxide

• Manganese (IV) oxide

• Manganese (II) oxide

The method used to determine subscripts by swapping ion charges is the:

• Stock system

• Balancing method

• Crisscross method

• Ratio method

The charge on a calcium ion is:

• 1⁺

• 2⁺

• 3⁺

• 2⁻

The symbol and charge for an iron (III) ion is:

• Fe²⁺

• Fe³⁺

• Fe⁻³

• Fe₃⁺

The reduced formula from Ca₂S₂ is:

• Ca₂S

• CaS₂

• CaS

• Ca₂S₃

A charged group of atoms that acts as a single unit is a:

• Molecule

• Diatomic ion

• Polyatomic ion

• Neutral atom