- Water is a polar solvent and dissolves polar substances or those that can form hydrogen bonds. - Glucose (C6H12O6) is a sugar molecule with multiple hydroxyl (-OH) groups, making it highly polar and capable of forming hydrogen bonds with water. - Urea ((NH2)2CO) is a polar molecule with N-H bonds that can form hydrogen bonds with water. - Acetone (CH3COCH3) is a polar molecule due to the carbonyl group (C=O). It can accept hydrogen bonds from water and is miscible with water.