From email...

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On the exam, will you write the chemical formula as words or shorthand?
for example, hydroiodic acid as opposed to HI

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Yes. You will most likely see both, depending upon the goal of the problem. In some cases I want to see if you can write balanced formulas and balanced reactions, so I will give you the name of the chemical and expect you to write the correct formula. In other cases, I want to see if you can do the stoichiometry from a given chemical reaction so I'll use a chemical formula. In "special" cases, there are only a few names I expect you to know. You should know the names and formulas of all strong acids, ammonia, etc.