1. Phenolphthalein solution turns bases _______.   colorless   pink   orange   yellow   Hint Half-n-half Clue   2. A pH scale reading of more than 7 indicates _______ medium.   an acidic   an unknown   a neutral   a basic   Half-n-half Clue   3. Sulfuric acid turns red litmus paper blue.   True   False   4. A pH scale reading of 13 indicates a _______.   weak acid   weak base   strong acid   strong base   Half-n-half Clue   5. A pH scale reading of _______ indicates a weak acid.   2   6   13   8   Half-n-half Clue   6. Bromothymol blue solution turns bases _______.   orange   blue   yellow   colorless   Half-n-half Clue   7. A pH scale reading of less than 7 indicates _______ medium.   an acidic   an unknown   a basic   a neutral   Half-n-half Clue