minta tolong yah..... lagi butuh skali....

1. konsentrasi larutan
2.
a. [Pb2+] [I-]^2
b. [Cd2+] [S2-]
c. [Ca2+] [OH-]^2
d. [Ag+]^2 [CrO42-]
e. [Cu+]^2 [S2-]