1. Bromothymol blue solution turns bases _______.   colorless   orange   blue   yellow   Hint Half-n-half Clue   2. Pure distilled water gives a pH scale reading equal to _______.   0   1   7   14   Half-n-half Clue   3. A pH scale reading of _______ indicates a weak acid.   6   8   2   13   Half-n-half Clue   4. A pH scale reading of 2 indicates a _______.   weak acid   strong acid   weak base   strong base   Half-n-half Clue   5. A pH scale reading of less than 7 indicates _______ medium.   an acidic   an unknown   a basic   a neutral   Half-n-half Clue   6. A pH scale reading of _______ indicates a weak base.   13   6   8   2   Half-n-half Clue   7. Phenolphthalein solution turns bases _______.   orange   pink   yellow   colorless   Half-n-half Clue