naming ionic compounds

If a sulfate ion has a charge of 2-, how many sodium ions will combine with one sulfate ion?

• 1

• 2

• 3

• 2.5

The nitrate ion is

• N^3-

• NO₃^-

• NO₂^-

• Ni^-

The chemical formula for CaS is

• Cerium sulfide

• Carbon sulfur

• Calcium sulfide

• Calcium sulfur

Which of these is NOT a polyatomic ion?

• OH^-

• CO₃^2-

• PO₄^3-

• Cl^-

• ClO₄^-

The name of FeCl₂ is

• iron chloride

• iron (II) chloride

• iron (I) chloride

• iron dichloride

Which of the following combinations would need roman numerals in the name?

• potassium + fluorine

• beryllium + oxygen

• boron + iodine

• lead + oxygen

What is the name of the compound Na₂(SO₄)?

• Sodium sulfate

• Sodium sulfide

• Sodium sulfite

• Sodium sulfuroxide

What is the correct formula for Sodium Oxide?

• NaO
• NaO₂
• Na₂O
• Na₂O₂

What is the correct molecular formula for barium hydroxide?

• Ba(OH)₂

• Ba₂OH

• BaOH

• Ba₂OH

What is the formula for copper(I) sulfate?

• CuSO₃
• CuSO₄
• Cu₂SO₃
• Cu₂SO₄