Honors Chemistry

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Can someone please explain to me how to use the stock naming system when naming chemical/ionic compounds? I reeeeaaaally do not get it. Here's some examples:

1. CaCO3
==> I know the answer is calcium carbonate, but how is it that answer?

2. FeSO4
==> The answer is ferrous sulfate, I believe, but I don't understand this either.

I've also been having trouble with the suffixes and prefixes -- my teacher does NOT explain things very well, in lectures and in notes. How do you know when to use which prefix? He said something about "if there is one less oxygen than '-ate', then it gets the ending '-ite'", and stuff like that. Can someone please explain this stuff to me? I'm sorry it's a lot, I just really want to understand this.

  • Honors Chemistry -

    There is seldom any great logic in naming things, take Honors Chemistry for instance. Someone put out some general rules of naming, and they stuck.
    what you stated "he said something.." yep, that is the rule.
    What I recommend is you make some flash cards, compound on one side, name on the other
    one side other side
    CO3 -2 carbon ate
    CO2 -2 carbon ite
    SO4 -2 sulf ate
    SO3 -2 sulf ite
    SO2 -2 hypo sulfite

    and so on.
    On the multivalent ions, such as ferric and ferrous, do the same thing. It is faster and more permanent in your mind just to memorize them, memorizing 60 or so will do you well.


  • Honors Chemistry -

    Thank you soooooo much for all your help!!!! The worksheet you hyperlinked to was EXACTLY what I needed. Thanks again! :D :D

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