1. Bromothymol blue solution turns acids _______.   colorless   orange   blue   yellow   Hint Half-n-half Clue   2. A pH scale reading of _______ indicates a weak base.   6   2   8   13   Half-n-half Clue   3. Addition of phenolphthalein solution to an acid results in no color change.   True   False   4. Phenolphthalein solution turns bases _______.   pink   colorless   orange   yellow   Half-n-half Clue   5. Methyl orange solution turns bases _______.   colorless   orange   pink   yellow   Half-n-half Clue   6. A pH scale reading of more than 7 indicates _______ medium.   an acidic   an unknown   a basic   a neutral   Half-n-half Clue   7. A pH scale reading of _______ indicates a weak acid.   6   2   8   13   Half-n-half Clue