Question

Help, explain the 8 rules of double replacement reactions

Answer 1

there are 8 rules?

that's way more than I ever use

Answer 2

apparently there is, its about soluble and insoluble and all this stuff i dont understand and the test is tomorrow((((((-:

Answer 3

i usually stick with 4 or so:

* all Group I cations and ammonium are soluble
* all nitrates and acetates are soluble
* chlorides, bromides, and iodides are soluble, except for compunds containing silver, lead, and mercury
* hydroxides are generally insoluble, especially transition metal hydroxides

Answer 4

the list goes on but those are the ones we see most often