Question

Physical Science A Semester Exam

10 of 3710 of 37 Items

Question
Use the periodic table to answer the question.

An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods).

Which comparison is correct?

(1 point)
Responses

HF is a stronger acid than HCl.
HF is a stronger acid than HCl.

NH3 is a stronger acid than HF.
NH 3 is a stronger acid than HF.

H2S is a stronger acid than HCl.
H 2 S is a stronger acid than HCl.

PH3 is a stronger acid than NH3.

Answer 1

[AI-generated answer — Bot GPT 3.5]

None of the comparisons provided are correct. Acidity is determined by the ability to donate a proton (H+ ion), with stronger acids being able to donate protons more readily. HF, HCl, NH3, H2S, and PH3 are not acids. HF is a weak acid, HCl is a strong acid, NH3 is a weak base, H2S is a weak acid, and PH3 is a weak base.