Solubility rules Flashcards
1
Q
What elements lead to always soluble compounds?
A
Li+, Na+, K+, Cs+, Rb+, NH4+
2
Q
What ions always lead to soluble compounds?
A
NO3-, ClO4-, C2H3O2-
3
Q
What is the rule and exceptions for F-, Cl-, Br-, and I-?
A
Always soluble, except when paired with Ag+, Hg+, and Pb2+
4
Q
What is the rule and what are the exceptions for SO42-?
A
Always soluble, unless they’re paired with Ca2+, Sr2+, Ba2+, Ag+, Hg22+, Pb2+
5
Q
What is the rule and what are the exceptions for S2- and OH-?
A
Insoluble, unless they’re paired with Li+, Na+, K+, Cs+, Rb+, NH4+, Ca2+, Sr2+, Ba2+
6
Q
What is the rule and what are the exceptions for CO32-, CrO42-, and PO43-?
A
Always insoluble, unless they’re paired with Li+, Na+, K+, Cs+, Rb+, NH4+
