1. Which of the following is known as a 'proton donor'?   acid   water   salt   base   Hint Half-n-half Clue   2. A base is known as a 'proton _______'.   donor   acceptor   3. _______ acid is used in the manufacture of many car batteries.   Phosphoric   Hydrochloric   Nitric   Sulfuric   Half-n-half Clue   4. _______ acid is responsible for the 'fizz' in soft drinks.   Acetic   Citric   Oxalic   Carbonic   Half-n-half Clue   5. _______ hydroxide is also known as 'Caustic Soda'.   Potassium   Sodium   Calcium   Magnesium   Half-n-half Clue   6. If _______ ions are found in a solution, the solution is basic in nature.   hydronium   hydrogen   hydroxyl   Half-n-half Clue   7. Acids are bitter in taste.   True   False