So we're going to start out with Ghana Cash. Ghana Cash is used for soluble ionic solutes now with the exceptions creating an insoluble solute called a precipitate. So basically, if we're breaking our one of our rules for Ghana Cache, we're going to make a solid called a precipitate. Now the exceptions are, shh, keep quiet about the cash.
So let's just go through Ghana Cache and see how it works, All right. So Ghana Cache stands for Ghana G stands for Group 1A. So we're talking about group 1A elements, Hydrogen, Lithium, sodium, potassium, etc. They have no exceptions, meaning if they're part of our ionic compound, the ionic compound overall is automatically soluble.
Next, A. A stands for acetate ion it too. If it's connected or part of an ionic compound, it's automatically soluble. N is for nitrate, which is NO3-, also no exceptions. The next A is for ammonium ion, which is NH4+. Art of cache. C stands for chlorate and by extension it stands for perchlorate. These have no exceptions, so so far we've gone through Ghana cache and seen no exception.
The next A is just and we have sulfate, which is SO42- and halogen. So remember, these are your group 7A elements, fluorine, chlorine, bromine and iodine. They have exceptions. So let's talk about it for sulfate to remember its exception. Just remember CBS happy here. We're going to say if sulfate is connected to CBS or HAP, it's going to form a precipitate. It's going to be an exception to the solubility rule O here. It creates a solid when connected to calcium, barium, strontium, mercury, silver or lead.
Halogens are soluble unless they're connected to hemp. So if they're connected to mercury, silver or lead, they form a precipitate a solid. So just remember Ghana Cash helps us to identify our soluble ionic compounds. If there are exceptions, they will form a precipitate known which is our solid. So just keep this in mind when looking at different types of ionic compounds.