Reviewing Polyatomic Ions

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species (ion) composed of two or more atoms covalently bonded, which can be considered as a single unit.

Front

What is the formula for carbonate?

Back

The formula for carbonate is (CO₃)²⁻.

Front

Which polyatomic ion has a -2 charge?

Back

The carbonate ion (CO₃)²⁻ has a -2 charge.

Front

What is the formula for cyanide?

Back

The formula for cyanide is (CN)⁻.

Front

What is the formula for nitrate?

Back

The formula for nitrate is (NO₃)⁻.

Front

What is the formula for hydroxide?

Back

The formula for hydroxide is (OH)⁻.

Front

List three common polyatomic ions with their charges.

Back

1. Sulfate (SO₄)²⁻ 2. Phosphate (PO₄)³⁻ 3. Acetate (C₂H₃O₂)⁻.

Front

What is the charge of the phosphate ion?

Back

The charge of the phosphate ion (PO₄)³⁻ is -3.

Front

What is the difference between nitrate and nitrite?

Back

Nitrate (NO₃)⁻ has one more oxygen atom than nitrite (NO₂)⁻.

Front

What is the significance of polyatomic ions in chemical reactions?

Back

Polyatomic ions often act as a single unit in chemical reactions, allowing for the formation of various compounds.