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Home :Companion Notes :Compounds :Polyatomic ionsPrint | Comment

Quiz
1. A sudden surge in the concentration of thiosulfate ions in geyser water may be a sign that a volcanic eruption is imminent. The thiosulfate ion is:
S2O42-SO32-S2O4-S2O32-SO42-
2. 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
HBrO3-BrO4-BrO3-BrO4-2BrO32-
3. Nitrite ion is used in bleaching, dyeing and printing fabrics. The formula of the nitrite ion is:
NO3-NO42-N2O3-2HNO4-NO2-
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:
Pb(C2O4)2Pb(C2H3O2)2PbC2O4PbCO3PbC2H3O2
5. Chlorite compounds are extremely explosive when they come into contact with combustible material. The formula of the chlorite ion is:
ClO2-ClO2-2ClO3-ClO2-HClO3-
6. The SCN- ion forms a bright red complex with iron(II) ions. The SCN- ion is called the:
thiocyanide ionthiocyanite ionsulfurocyanide ioncyanate ioncyanide ionthiocyanate ion
7. NaClO3 has been used in herbicides and in explosives. The name of this compound is:
sodium chloratesodium chloridesodium chloride trioxidesodium chloritesodium perchlorate
8. Sodium peroxide can be used for oxygen generation in diving bells and submarines, since it reacts with carbon dioxide and produces oxygen gas. The peroxide ion has the formula:
O22-O2+O2-O3-O2-
9. Iodate ion is used as a disinfectant. The formula of the iodate ion is
IO3-IO4-2IO4-HIO3-IO32-
10. Ammonium nitrate is used as a fertilizer by farmers and as an explosive by terrorists. The formula of ammonium nitrate is
(NH4)2NO2NH3NO2NH3NO3AmNO2NH4NO3
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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