Name: __________________________ Period: _____ Date: _____________________ Chapter 5: Compounds Pre/Post Test 1. Metals tend to _________________________ electrons, form _____________ ions and can be found on the ___________ hand side of the periodic table. 2. Nonmetals tend to ____________________ electrons, form ______________ ions and can be found on the ____________ hand side of the periodic table. 3–4. Here is a periodic table. Draw the Lewis diagram and label the charge (oxidation #) of each family. Skip 3 – 12. Skip these for now. 5. ________________________ bonds form between metals and nonmetals when electrons are _____________________. 6. _________________________ bonds form between two nonmetals when electrons are ______________________. Identify the following as ionic or covalent bonds. 7. ________________________ CO2 8. ________________________ (NH4)2O 9. ________________________ FeI3 Determine the charge on each metal ion in bold. 10. _________ AgO 11. _________ Fe2O3 12. _________ CuSO4 Determine the total number of atoms of each element in the following compounds. 13. C2H4 C = ________ H = ________ 14. H3PO4 H = ________ P = ________ O = ________ 15. Ni(OH)2 Ni = ________ O = ________ H = ________ Use Lewis diagrams to show the bonding between the following atoms. Make sure to use the correct method to show gaining, losing, or sharing. 16. Na + S 17. C + F Write the name of the compound for each example given. 18. ___________________________ LiNO3 19. ___________________________ CaCl2 20. ___________________________ SBr2 Write the formula for each compound given. 21. ____________ magnesium iodide 22. ____________ diphosphorus trioxide 23. ____________ strontium sulfate Balance the following chemical equations. 24. _____ Fe + _____ Cl2 _____ FeCl3 25. _____ H2 + _____ N2 _____ NH3 26. _____ CaCl2 + _____ AgNO3 _____ AgCl + _____ Ca(NO3)2 Write and balance the following chemical equations. 27. Chlorine gas reacts with potassium bromide to form potassium chloride and bromine. 28. Calcium oxide reacts with sulfur dioxide to form calcium sulfite. Chapter 5: Compounds Pre/Post Test 1. Metals tend to _give away_ electrons, form _positive_ ions and can be found on the _left_ hand side of the periodic table. 2. Nonmetals tend to _take away_ electrons, form _negative_ ions and can be found on the _right hand_ side of the periodic table. 3– 4. Here is a periodic table. Draw the Lewis diagram and label the charge (oxidation #) of each family. Skip 3 – 12. Skip these for now. 5. _ionic_ bonds form between metals and nonmetals when electrons are _transferred_. 6. _covalent_ bonds form between two nonmetals when electrons are _shared_. Identify the following as ionic or covalent bonds. 7. _ covalent _ CO2 8. _both_ (NH4)2O (the bonds that hold N and H together are covalent. The bonds that hold NH4 and O together are ionic.) 9. _ ionic _ FeI3 Determine the charge on each metal ion in bold. 10. _+2_ AgO 11. _+3_ Fe2O3 12. _+2_ CuSO4 Determine the total number of atoms of each element in the following compounds. 13. C2H4 C = _2_ H = _4_ 14. H3PO4 H = _3_ P = _1_ O = _4_ 15. Ni(OH)2 Ni = _1_ O = _2_ H = _2_ Use Lewis diagrams to show the bonding between the following atoms. Make sure to use the correct method to show gaining, losing, or sharing. 16. Na + S 17. C + F Write the name of the compound for each example given. 18. _lithium nitrate_ LiNO3 19. _calcium chloride_ CaCl2 20. _sulfur dibromide_ SBr2 Write the formula for each compound given. 21. _MgI2_ magnesium iodide 22. _P2O3_ diphosphorus trioxide 23. _SrSO4_ strontium sulfate Balance the following chemical equations. 24. _2_ Fe + _3_ Cl2 _2_ FeCl3 25. _3_ H2 + _____ N2 _2_ NH3 26. _____ CaCl2 + _2_ AgNO3 _2_ AgCl + _____ Ca(NO3)2 Write and balance the following chemical equations. 27. Chlorine gas reacts with potassium bromide to form potassium chloride and bromine. Cl2 + KBr KCl + Br2 (unbalanced) Cl2 + 2 KBr 2 KCl + Br2 (balanced) 28. Calcium oxide reacts with sulfur dioxide to form calcium sulfite. CaO + SO2 CaSO3 (balanced)