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Home :Companion Notes :Compounds :Polyatomic ionsPrint | Comment

Quiz
1. Chlorite compounds are extremely explosive when they come into contact with combustible material. The formula of the chlorite ion is:
ClO2-ClO3-HClO3-ClO2-ClO2-2
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
BrO3-BrO4-2BrO4-BrO32-HBrO3-
3. Nitrite ion is used in bleaching, dyeing and printing fabrics. The formula of the nitrite ion is:
NO3-N2O3-2HNO4-NO2-NO42-
4. Phosphate ion is the most common:
-1 anion-2 anion-3 anion+1 cation+1 anion
5. The NO4- ion exists in small quantities in the upper atmosphere. Using the naming guidelines for polyatomic ions, the name of this ion would be:
hyponitritepernitratesupernitratenitritenitrate
6. Phosphate ion is a basic building block of minerals, bones, teeth, and DNA. The formula of the phosphate ion is:
PO43-PhO2-2HPO4-2PO3-PO42-
7. If TeO42- is the tellurate ion, the name of the TeO32- ion is expected to be:
telluridepertelluratehemitelluratehypotelluritetellurite
8. Sodium aluminate is used in fabric printing processes. If the formula is NaAlO2, the charge on the aluminate ion must be:
+2+10-2-1
9. Ammonium nitrate is used as a fertilizer by farmers and as an explosive by terrorists. The formula of ammonium nitrate is
NH4NO3(NH4)2NO2NH3NO2AmNO2NH3NO3
10. Hypobromite compounds are used to treat water supplies that are heavily contaminated with bacteria. The formula of the hypobromite ion is:
BrO-BrO2-BrO2-2BrO3-HBrO-
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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