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CHEM103: Oxyanions [Further Topic #2]

Terms in this set (10)

Oxyanion
A polyatomic ion that contains oxygen.
Some elements are able to form more than one ____.
oxyanion
Common polyatomic ions ending in -ate
NO3- nitrate
SO42- sulfate
PO43- phosphate
ClO3- chlorate
BrO3- bromate
IO3- iodate
Essentially, if you memorize these, you can memorize the other oxyanions they have.
hydrogen carbonate (bicarbonate)
HCO3-
hydrogen sulfate (bisulfate)
HSO4-
Hydrogen sulfite (bisulfite)
HSO3-
EXAMPLE 1 - Naming Polyatomic Ions: Write names that correspond to the following formulas for polyatomic ions:
(1) PO33- (with barium ions in glass)
(2) HSO4− (in perfumes).
1) Phosphite
2) Hydrogen sulfate
EXAMPLE 2 - Formulas for Polyatomic Ions: Write formulas that correspond to the following names for polyatomic ions:
(1) bromite ion, used in the production of cloth
(2) dihydrogen hypophosphite ion, used with manganese(II) ions as a food additive.
1) BrO2-
2) H2PO2-
Exercise 1 - Naming Polyatomic Ions: Write names that correspond to the following formulas for monatomic ions: IO3−, used with calcium ions as a dough conditioner, ClO4−, used in jet fuel, and HCO3−, used in antacids.
1) Iodate
2) Perchlorate
3) Hydrogen carbonate (bicarbonate)
Exercise 2 - Formulas for Polyatomic Ions: Write formulas that correspond to the following names for polyatomic ions: sulfite ion (preservative) and hydrogen phosphate ion (in animal feed supplements).
1) SO3 2-
2) HPO4 2-
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