Final answer:
The nitrate ion (NO₃⁻) can combine with various cations to form different ionic compounds, such as calcium nitrate (Ca(NO₃)₂), ammonium nitrate (NH₄NO₃), and potassium nitrate (KNO₃).
Step-by-step explanation:
The nitrate ion (NO₃⁻) is a polyatomic ion that can combine with different cations to form various ionic compounds. Here are some examples of compounds that contain the nitrate ion along with their names and formulas:
- Calcium nitrate (Ca(NO₃)₂) - Ca²⁺ + 2NO₃⁻
- Ammonium nitrate (NH₄NO₃) - NH₄⁺ + NO₃⁻
- Potassium nitrate (KNO₃) - K⁺ + NO₃⁻
These are just a few examples, but there are many more compounds that contain the nitrate ion.