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22 December, 00:51

A substance with a pH of 13.0 will

A. change red litmus paper to blue.

B. change blue litmus paper to red.

C. not change red or blue litmus paper.

D. not be testable using litmus paper.

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Answers (2)
  1. 22 December, 01:13
    0
    B ...
  2. 22 December, 01:16
    0
    B. Litmus Papers turn blue in bases, and on the pH scale, a base must have a pH level over 7
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