How does the reaction of an acid with a base affect the pH of the resulting solution?

A. The pH increases

B. The pH decreases

C. The pH remains unchanged

D. It depends on the specific acid and base

Answer Explanation:

When an acid reacts with a base in a neutralization reaction, the pH of the resulting solution remains unchanged if the quantities of acid and base are stoichiometrically balanced. This is because the \(H^+\) ions from the acid react with the \(OH^-\) ions from the base to form water, effectively neutralizing each other.

Therefore, the Correct Answer is C.

Q #1: Which of the following properties is a characteristic of acids?

A. Bitter taste

B. Turn litmus paper blue

C. React with metals to release hydrogen gas

D. Do not Conduct electricity in solution

Answer Explanation

Acids react with certain metals to release hydrogen gas. This is a characteristic property of acids known as their reactivity with metals.
Q #2: 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.
Q #3: 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.

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How does the reaction of an acid with a base affect the pH of the resulting solution?

More Questions on TEAS 7 Science

Q #1: Which of the following properties is a characteristic of acids?

Answer Explanation

Q #2: How do acids affect the electrical conductivity of a solution?

Answer Explanation

Q #3: Which of the following statements about the taste of acids is true?

Answer Explanation

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