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How do acids affect the electrical conductivity of a solution?

A. They decrease conductivity

B. They increase conductivity

C. They have no effect on conductivity

D. It depends on the concentration of the acid

Answer Explanation:

Acids increase the electrical conductivity of a solution. This is because acids ionize in water to produce hydrogen ions (\(H^+\)), which carry an electric charge.

Therefore, the Correct Answer is B.

More Questions on TEAS 7 Science

  • Q #1: What happens to the conductivity of a weak acid solution as it becomes more diluted?

    A. Conductivity increases

    B. Conductivity decreases

    C. Conductivity remains constant

    D. It depends on the acid

    Answer Explanation

    As a weak acid solution becomes more diluted, the concentration of ions decreases, leading to a decrease in conductivity. Weak acids only partially ionize in solution, resulting in fewer ions available to conduct electricity.

  • Q #2: Which of the following statements about the taste of acids is true?

    A. Acids have a sweet taste

    B. Acids have a bitter taste

    C. Acids have a sour taste

    D. Acids have no taste

    Answer Explanation

    Acids have a sour taste. This is one of their characteristic properties, though tasting chemicals is not safe and should never be done.

  • Q #3: How does the pH of an acidic solution compare to that of a neutral solution?

    A. The pH of an acidic solution is lower than that of a neutral solution

    B. The pH of an acidic solution is higher than that of a neutral solution

    C. The pH of an acidic solution is the same as that of a neutral solution

    D. The pH of an acidic solution is unpredictable

    Answer Explanation

    The pH scale ranges from 0 to 14, where pH values less than 7 indicate acidic solutions. Therefore, the pH of an acidic solution is lower than that of a neutral solution, which has a pH of 7.