H Test Review Naming Lewis and Moles

What two types of atoms make a covalent bond?

• 2 nonmetals

• 1 nonmetals & 1 metal

• 2 metals

• 2 noble gases

How many valence electrons does nitrogen have?

• 1

• 2

• 3

• 5

What is the correct name for this polyatomic ion: OH^–

• hydrogen carbonate

• oxonium

• hydroxide

• acetate

What is the correct name for this polyatomic ion: NO₃^–

• carbonate

• hydroxide

• nitrite

• nitrate

What is the correct formula for the polyatomic ion called ammonium?

• NH₃⁺

• NH₃

• CN⁺

• NH₄⁺

What is the correct formula for the polyatomic ion called sulphate?

• SO₃^2–

• HSO₄^–

• SO₄^2–

• CH₃COO^–

Phosphate

• PO₄^-3
• O₂^-2
• OH^-
• CO₃^-2

What is the formula for chromium (II) hydroxide?

• CrOH

• Cr(OH)₁

• Cr(OH)₃

• Cr(OH)₂

What is iron's charge in the chemical formula FeCl₃?

• 1+
• 2+
• 3+
• 1-

The name of Na₂SO₄ is

• sodium nitrate.

• sodium hydroxide.

• sodium sulfate.

• sodium phosphate.