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Chem3 Ch5.p6.D.2

Writing Formulas from names: Polyatomic ions

Formulas from name:ProcessAnswer
Step 1 Memorize common polyatomic ions
Step 2 Formulas for polyatomic ions are written as usual
Rule 2a Except: put parentheses around polyatomic ions whenever there are more than one
Rule 2b Dont break up polyatomic ions (write Ca3(PO4)2, not Ca3P2O8)
Bismuth (III) perchlorate: Bismuth (III) indicates Bi3+ and perchlorate always forms CLO4- ; Bi3+ and CLO4- combine to give Bi(CLO4)3
Created by: nikkimem32
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