Ionic Compounds with Polyatomic Ions

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What is an ionic compound?

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An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. They typically form between metals and nonmetals.

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What are polyatomic ions?

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Polyatomic ions are ions that consist of two or more atoms bonded together, which carry a net charge. Examples include sulfate (SO₄²⁻) and nitrate (NO₃⁻).

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How do you name ionic compounds containing polyatomic ions?

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When naming ionic compounds with polyatomic ions, the name of the cation (positive ion) is followed by the name of the polyatomic ion. For example, NaNO₃ is named sodium nitrate.

Front

What is the formula for ammonium sulfate?

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The formula for ammonium sulfate is (NH₄)₂SO₄.

Front

What is the charge of the sulfate ion?

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The sulfate ion (SO₄) has a charge of -2.

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How do you determine the formula for an ionic compound?

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To determine the formula for an ionic compound, balance the total positive and negative charges of the ions involved to ensure the compound is neutral.

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What is the formula for calcium phosphate?

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The formula for calcium phosphate is Ca₃(PO₄)₂.

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What is the name of the compound with the formula KClO₃?

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The name of the compound KClO₃ is potassium chlorate.

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What is the formula for sodium bicarbonate?

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The formula for sodium bicarbonate is NaHCO₃.

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What is the name of the compound NH₄Cl?

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The name of the compound NH₄Cl is ammonium chloride.