Ions, Compounds, and Acids-Bases

Which of the following ions has a charge of +1?

• Fe²⁺

• Ag⁺

• SO₄²⁻

• CO₃²⁻

What is the charge on a sulfate ion?

• -1

• +1

• -2

• +2

Which group do non-metals with known charges belong to?

• Groups 1, 2, and 3

• Groups 5, 6, and 7

• Groups 4, 5, and 6

• Groups 2, 3, and 4

What is the formula for the ammonium ion?

• NH₄⁺

• NO₃⁻

• SO₄²⁻

• CO₃²⁻

Which of the following is a hydroxide ion?

• OH⁻

• H⁺

• Fe³⁺

• Zn²⁺

What is the charge on a zinc ion?

• +1

• +2

• -1

• -2

Which of the following is a correct formula for a compound formed from sodium (Na⁺) and sulfate (SO₄²⁻)?

• NaSO₄

• Na₂SO₄

• NaSO₄₂

• Na₂SO₄₂

Which ion has a charge of +3?

• Fe²⁺

• Fe³⁺

• Cu²⁺

• Pb²⁺

What is the formula for nitrate ion?

• NO₃⁻

• NO₂⁻

• NH₄⁺

• SO₄²⁻

Which of the following is a metal in Group 1?

• Sodium

• Oxygen

• Chlorine

• Carbon