Familiar, to what extent?Riviet said:It's handy to be familiar with the common elements of the periodic table (first 20 or so). Knowing some of the common polyatomic ions like phosphate and carbonate will also be assumed knowledge.
Share us your knowledge on solubility rules, it does not help me to just rely on a strip of paper to learn the solubility rules ...Nodice said:Solubility rules don't need to be remembered to succeed in chemistry, but they are certainly helpful. It'll help you to understand 'why' some substances are used and others are not, for instance in the salt bridge in electrolytic cells (KNO3 since they are soluble).
Know their common name + formula including their valence number, e.g Phosphate PO43-airie said:Familiar, to what extent?