<p> Chapter 5 Review Sheet Answer Key</p><p>1. A cation is a positively charged ion formed when metals lose electrons.</p><p>2. An anion is a negatively charged ion formed when nonmetals and metalloids lose electrons.</p><p>3. A monatomic ion is an ion that comes from just one single element. For example Ca+2 and N-3. </p><p>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 .</p><p>5. Ionic compounds are always made up of cations and anions.</p><p>6. True</p><p>7. False. You do not have to use the criss-cross method when the first element in the compound is not a metal.</p><p>8. Sometimes (never use mono for the first element), always</p><p>9. The charge for the metal is shown by using a Roman numeral to represent the charge of the metal.</p><p>10. +1 Ammonium ion, NH4</p><p>11. zero</p><p>12. hydrogen ion, H+1</p><p>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</p><p>1. Cu(C2H3O2)2 ______copper (II) acetate______</p><p>2. N3O8 ______trinitrogen octoxide______</p><p>3. Li2O ______lithium oxide______</p><p>4. Co2(CO3)3 ______cobalt (III) carbonate______</p><p>5. NH4CN ______ammonium cyanide______</p><p>6. H2S ______hydrosulfuric acid______</p><p>7. FeP ______iron (III) phosphide______</p><p>8. Au3PO4 ______gold (I) phosphate______9. KMnO4 ______potassium permanganate______</p><p>10. N2F5 ______dinitrogen pentafluoride______</p><p>11. Be(NO2)2 ______beryllium nitrite______</p><p>12. Au2(SO4)3 ______gold (III) sulfate______</p><p>13. Ni(NO3)4 ______nickel (IV) nitrate______</p><p>14. CO3 ______carbon trioxide______</p><p>15. H3PO4 ______phosphoric acid______</p><p>16. Pb3(PO3)4 ______lead (IV) phosphite______</p><p>17. (NH4)2Cr2O7 ______ammonium dichromate______</p><p>18. HBrO3 ______bromic acid______</p><p>19. LiHC2H3O2 ______lithium acetate______</p><p>20. AgHSO4 ______silver bisulfate______Triphosphorus heptafluoride _____P3F7______</p><p>1. Chromium (III) sulfate</p><p>_____Cr2(SO4) 3______</p><p>2. Calcium permanganate</p><p>_____Ca(MnO4)2______</p><p>3. Ammonium hydrogen phosphate</p><p>_____(NH4)2HPO4______</p><p>4. Manganese (III) peroxide</p><p>______Mn2(O2) 3______</p><p>5. Hydrochloric acid</p><p>______HCl______</p><p>6. Aluminum chromate</p><p>______Al2(CrO4) 3______</p><p>7. Mercury (II) perchlorate</p><p>______Hg(ClO4)2______</p><p>8. Perchloric acid ______HClO4______</p><p>9. Zinc bisulfate</p><p>______Zn(HSO4)2______</p><p>10. Silicon pentabromide</p><p>______SiBr5______</p><p>11. Nickel (IV) hydroxide</p><p>______Ni(OH)4______</p><p>12. Chromic permanganate</p><p>______Cr(MnO4) 3______13. Nitric acid</p><p>______HNO3______</p><p>14. Iron (III) sulfate</p><p>______Fe2(SO4) 3______</p><p>15. Potassium bisulfite</p><p>______KHSO3 ______</p><p>16. Tin (IV) chromate</p><p>______Sn(CrO4)2______</p><p>17. Disulfur decaiodide</p><p>______S2I10______</p><p>18. Chlorous acid</p><p>______HClO2______</p><p>19. Copper (I) oxide ______Cu2O______</p>