1. Methyl orange solution turns acids _______.   pink   yellow   orange   colorless   Hint Half-n-half Clue   2. A pH scale reading of more than 7 indicates _______ medium.   an unknown   an acidic   a neutral   a basic   Half-n-half Clue   3. A pH scale reading of _______ indicates a weak base.   6   13   8   2   Half-n-half Clue   4. Addition of phenolphthalein solution to an acid results in no color change.   True   False   5. A pH scale reading equal to 7 indicates _______ medium.   an acidic   a neutral   an unknown   a basic   Half-n-half Clue   6. Pure distilled water gives a pH scale reading equal to _______.   0   7   1   14   Half-n-half Clue   7. Phenolphthalein solution turns bases _______.   orange   pink   yellow   colorless   Half-n-half Clue