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Subject Test Chemistry

Question 7 of 17

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SAT Subject Test

Each of the questions or incomplete statements below is followed by five suggested answers or completions.  Select the one that is best in each case.

When text HS end text to the power of minus end exponent acts as a Brønsted base, which of the following is formed?

Select an Answer

text S end text to the power of 2 minus end exponent

Correct Answer: 
No

text H end text to the power of plus

Correct Answer: 
No

text H end text subscript 2 text S end text

Correct Answer: 
Yes

text H end text subscript 2 text S end text subscript 2

Correct Answer: 
No

text H end text subscript 3 text S end text to the power of plus

Correct Answer: 
No

A Brønsted base is a proton acceptor. When text HS end text to the power of minus end exponent reacts with text H end text to the power of plus end exponent (a proton), text H end text subscript 2 end subscript text S end text is formed.

Question Difficulty: 
medium