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