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Use the periodic table to answer the question.



Which comparison is correct?

(1 point)
Responses

H2S
is a stronger acid than HCl
cap h sub 2 cap s is a stronger acid than cap h cap c l

NH3
is a stronger acid than HF
.
cap n cap h sub 3 is a stronger acid than cap h cap f.

PH3
is a stronger acid than NH3
.
cap p cap h sub 3 is a stronger acid than cap n cap h sub 3.

HF
is a stronger acid than HCl
.

1 answer

To evaluate the comparisons, we can analyze the acids involved based on their structures and their ability to donate protons (H⁺).

  1. H₂S vs. HCl: HCl is a strong acid that dissociates completely in water, while H₂S is a weak acid. Therefore, H₂S is not stronger than HCl.

  2. NH₃ vs. HF: Ammonia (NH₃) is a weak base rather than an acid, and HF is a weak acid. Therefore, it is incorrect to say NH₃ is a stronger acid than HF.

  3. PH₃ vs. NH₃: PH₃ (phosphine) is less acidic than NH₃ (ammonia). Therefore, PH₃ is not stronger as an acid than NH₃.

  4. HF vs. HCl: HF is a weak acid, and HCl is a strong acid. Therefore, HF is not stronger than HCl.

Based on this analysis, none of the comparisons listed are correct. All comparisons made in the options provided do not hold true.