Ionic Compounds: 1. Sodium chloride (NaCl) - Table salt 2. Calcium carbonate (CaCO₃) - Found in limestone and marble 3. Potassium iodide (KI) - Used in iodized salt 4. Magnesium oxide (MgO) - Used in antacids 5. Aluminum oxide (Al₂O₃) - Found in aluminum oreElements: 1. Oxygen (O) 2. Hydrogen (H) 3. Carbon (C) 4. Nitrogen (N) 5. Iron (Fe)