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