Chapter 5 Review Sheet Answer Key

1. A cation is a positively charged ion formed when metals lose electrons.

2. An anion is a negatively charged ion formed when nonmetals and metalloids lose electrons.

3. A monatomic ion is an ion that comes from just one single element. For example Ca+2 and N-3.

4. A polyatomic ion is an ion that is made up of more than one element. The charge for -3 -1 the ion is from the combination of all of the elements. For example: PO4 and OH .

5. Ionic compounds are always made up of cations and anions.

6. True

7. False. You do not have to use the criss-cross method when the first element in the compound is not a metal.

8. Sometimes (never use mono for the first element), always

9. The charge for the metal is shown by using a Roman numeral to represent the charge of the metal.

10. +1 Ammonium ion, NH4

11. zero

12. hydrogen ion, H+1

13. ions that end in –ide change to hydro______ic acid, ions that end in –ate change to _____ ic acid, and ions that end in –ite change to ______ous acid

1. Cu(C2H3O2)2 ______copper (II) acetate______

2. N3O8 ______trinitrogen octoxide______

3. Li2O ______lithium oxide______

4. Co2(CO3)3 ______cobalt (III) carbonate______

5. NH4CN ______ammonium cyanide______

6. H2S ______hydrosulfuric acid______

7. FeP ______iron (III) phosphide______

8. Au3PO4 ______gold (I) phosphate______9. KMnO4 ______potassium permanganate______

10. N2F5 ______dinitrogen pentafluoride______

11. Be(NO2)2 ______beryllium nitrite______

12. Au2(SO4)3 ______gold (III) sulfate______

13. Ni(NO3)4 ______nickel (IV) nitrate______

14. CO3 ______carbon trioxide______

15. H3PO4 ______phosphoric acid______

16. Pb3(PO3)4 ______lead (IV) phosphite______

17. (NH4)2Cr2O7 ______ammonium dichromate______

18. HBrO3 ______bromic acid______

19. LiHC2H3O2 ______lithium acetate______

20. AgHSO4 ______silver bisulfate______Triphosphorus heptafluoride _____P3F7______

1. Chromium (III) sulfate

_____Cr2(SO4) 3______

2. Calcium permanganate

_____Ca(MnO4)2______

3. Ammonium hydrogen phosphate

_____(NH4)2HPO4______

4. Manganese (III) peroxide

______Mn2(O2) 3______

5. Hydrochloric acid

______HCl______

6. Aluminum chromate

______Al2(CrO4) 3______

7. Mercury (II) perchlorate

______Hg(ClO4)2______

8. Perchloric acid ______HClO4______

9. Zinc bisulfate

______Zn(HSO4)2______

10. Silicon pentabromide

______SiBr5______

11. Nickel (IV) hydroxide

______Ni(OH)4______

12. Chromic permanganate

______Cr(MnO4) 3______13. Nitric acid

______HNO3______

14. Iron (III) sulfate

______Fe2(SO4) 3______

15. Potassium bisulfite

______KHSO3 ______

16. Tin (IV) chromate

______Sn(CrO4)2______

17. Disulfur decaiodide

______S2I10______

18. Chlorous acid

______HClO2______

19. Copper (I) oxide ______Cu2O______