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Reference Tables

Table E: Selected Polyatomic ions Use information on Table E to:
. Identify symbols and names of polyatomic ions
in substances

. Write and name formulas containing
polyatomic ions
. Determine ionic charge of a given polyatomic
ion
8. Which element is found in both potassium
thiocynate and sodium acetate?
9. What is the correct formula for ammonium
phosphate?
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10. What is the name of the formula Mg(MnO4)2 ?

11. What is the sum of charges in a sulfite ion?

Table F : Solubility Guideline for Aqueous solutions

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Use information on Table F to:
.Determine soluble and insoluble compounds .
.Determine formulas and names of salts that are good or poor electrolyte.

12. Indicate if the compound MgS is soluble or insoluble?
13. Indicate if the compound KBr is soluble or insoluble?

14. Indicate if the compound PbSO4 is a good or poor electrolyte?
15. Indicate if the compound ammonium nitrate is a good or poor electrolyte?

16. Of the ions; Br , OH , CO3 , ClO3 ; which will form insoluble compound with Ba ?
-
-
-
2+
2-

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