Human tears have a concentration of H3O+ that is 3.16 × 10-8.The concentration of OH- in human tears is
A) greater than 3.16 × 10-7 and tears are acidic.
B) greater than 3.16 ×10-7 and tears are basic.
C) less than 3.16 × 10-7 and tears are acidic.
D) less than 3.16 × 10-7 and tears are basic.
Correct Answer:
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