Common Polyatomic Ions:
* Nitrate (NO₃⁻): Found in fertilizers and explosives.
* Sulfate (SO₄²⁻): Found in acid rain and car batteries.
* Phosphate (PO₄³⁻): Found in DNA and fertilizers.
* Carbonate (CO₃²⁻): Found in limestone and baking soda.
* Ammonium (NH₄⁺): Found in fertilizers and cleaning products.
* Hydroxide (OH⁻): Found in bases and lye.
* Cyanide (CN⁻): A highly toxic ion.
* Permanganate (MnO₄⁻): A strong oxidizing agent.
* Chromate (CrO₄²⁻): Used in pigments and corrosion inhibitors.
Key Points:
* Polyatomic ions have a net electrical charge due to the gain or loss of electrons.
* They are held together by covalent bonds within the ion.
* They act as a single unit in chemical reactions.
Let me know if you'd like to know more about specific polyatomic ions or their properties!
