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