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