Will aqueous solutions of these salts be acidic?

Question

Will aqueous solutions of each of the following salts be acidic, basic, or neutral?

A) CaCl2
B) KBr
C) KHCO3
D) NaHS
E) CsI
F) (CH3)2NH2Br
G) KClO4
H) Na2SO4

Thanks for the help!

I think it is:

NNBANABB but this is not right. What I know:

1)?
2)N
3)?
4)A
5)N
6)A
7)B
8)?

flongkoy, the computer says your answer is incorrect.

Answer 1

A. neutral
B. Neutral
C. Basic
D. Basic
E. neutral
F. basic
G. neutral
h. neutral

Answer 2

C it would break into Na+ and HC03 -, the HC03- is acidic due to the H ion and then for your additional details use the henderson-haselbeck (spelled wrong) equation which is pH= pKa + log ([A-]/[HA}) where the A- is the conc of the base (whichever of the 2 has less H's) and the HA is the conc of the acid (whichever of the 2 has more H's). You should have a table of pKa values in your chemistry book and ammonium should be in there and then just play with the equation when you put in more A- or base the pH will go up and when you put in more HA the pH will go down.