Question
1) In the reaction NaOH + H2O --> Na+ + OH-, sodium hydroxide is the:
A) Lewis acid
B) Brønsted-Lowry acid
C) Arrhenius base
D) Amphoteric substance
E) None of the above
(I think it's C)
2) The conjugate acid of the sulfide ion is:
A) S^2-
B) HS-
C) H2S
D) H3S+
E) None of the above
(I think it's C)
A) Lewis acid
B) Brønsted-Lowry acid
C) Arrhenius base
D) Amphoteric substance
E) None of the above
(I think it's C)
2) The conjugate acid of the sulfide ion is:
A) S^2-
B) HS-
C) H2S
D) H3S+
E) None of the above
(I think it's C)
Answers
DrBob222
I think 1 is right and 2 is wrong.
The conjugate acid of S= is HS^-. The conjugate acid of HS^- is H2S.
The conjugate acid of S= is HS^-. The conjugate acid of HS^- is H2S.
Anonymous
I see my mistake now, thanks!