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Home :Companion Notes :Compounds :Polyatomic ionsPrint | Comment

Quiz
1. if AsO43- is the arsenate ion, the name of the AsO33- ion is expected to be:
hemiarsenatehypoarsenitearsenidearseniteperarsenate
2. Hydroxide ion solutions are sprayed on pretzels to give them their characteristic texture; the ion is removed by reaction with carbon dioxide during baking. The hydroxide ion is:
HO2-HO2-OH-HO3-HO2+
3. Phosphate ion is a basic building block of minerals, bones, teeth, and DNA. The formula of the phosphate ion is:
HPO4-2PO42-PhO2-2PO43-PO3-
4. Deadly lead(II) acetate is sometimes called "sugar of lead" because it has a very sweet taste; it was once used to sweeten wine! Lead(II) acetate is written as:
PbC2H3O2PbC2O4PbCO3Pb(C2H3O2)2Pb(C2O4)2
5. Dichromate ions are used in the tanning of leather. Dichromate ion is:
Cr2O72-HCrO4-Cr2O32-HCrO3-CrO42-
6. Veterinarians administer an 0.2 percent potassium permanganate solution to cows and horses as an antidote for plant alkaloid poisoning. A bottle that contains potassium permanganate solution might be labelled:
KMnO4K2MnO3KMnO3K2MnO4KMgO4
7. Bromate ion was baked into bread until recently as a preservative; it has been found to cause cancer in laboratory animals. The formula of the bromate ion is
BrO4-HBrO3-BrO3-BrO4-2BrO32-
8. An old bottle labelled "sodium biphosphate" contains:
Na2HPO4NaH2PO3Na3PO4NaH2PO4NaHPO3
9. Ammonium nitrate is used as a fertilizer by farmers and as an explosive by terrorists. The formula of ammonium nitrate is
AmNO2(NH4)2NO2NH4NO3NH3NO2NH3NO3
10. Perchlorate compounds are used in explosives and jet fuels. The formula of the perchlorate ion is
ClO4-HClO3-ClO32-ClO4-2ClO3-
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Copyright © 1997-2005 by Fred Senese
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Last Revised 06/11/07.URL: http://antoine.frostburg.edu/chem/senese/101/compounds/polyatomic-quiz.shtml