1. Final Review: Chp. 8 and 9

2. Vocabulary Covalent bond Endothermic reaction Lewis Exothermic reaction structure Molecule Pi bond Sigma bond Resonance Structural formula VESPR model Polar covalent bond Non-polar bond Chemical equation Chemical reaction Coefficient Product Reactant Combustion reaction Decomposition reaction Single replacement reaction Double replacement reaction Synthesis reaction Precipitate Aqueous Complete ionic equation Net ionic equation Solute Solvent Spectator Ion

3. Which diagram correctly depicts the trend in electronegativity?

4. How many atoms in each formula? 1.CH 3 OH 2.CH 4 3.PF 3 4.OF 2 5.NO 2 - 6.BH 3 7.SO 4 2- 8.CN - 9.N 2 H 2

5. Covalent Bonds How many covalent bonds can elements in the following groups form: –Group 1 (alkali metals) –Group 2 (alkali earth metals) –Group 3 –Group 4 –Group 5 –Group 6 –Group 7 (halogens) –Group 8 ( noble gases)

6. Diatomic Molecules List the 7 diatomic molecules:

7. Naming Molecules SiS 4 PCl 5 CCl 4 NO

8. Writing Formulas Sulfur difluoride Silicon tetrachloride Chlorine trifluoride Tetrasulfur heptanitride

9. Lewis structures CH 3 OH BH 3 N 2 H 2

10. Lewis Structures with polyatomic ions SO 4 2- CN -

11. Molecular Shapes CH 4 PF 3 OF 2 NO 2 -

12. Lewis Structures with resonance NO 3 – CO 3 2-

13. Label the following as reactants or products Zinc and lead (II) nitrate react to form zinc nitrate and lead. 2SO 2 + O 2  2AL(OH) 3 + 3CaSO 4 2Be + O 2  2BeO 2PbO 2  2PbO + O 2

14. List the following GENERAL equations Combustion Synthesis Decomposition Double replacement Single replacement

15. Name the type of chemical reaction 2SO 2 + 3O 2  2SO 4 2Be + O 2  2BeO 2PbO 2  2PbO + O 2 C 2 H 6 + O 2  CO 2 + H 2 O Li + NaOH  LiOH + Na

16. What chemical reaction does this picture show?

18. Write the correct ratio of coefficients for the following: Zinc and lead (II) nitrate react to form zinc nitrate and lead. 2SO 2 + O 2  2Al(OH) 3 + 3CaSO 4 2Be + O 2  2BeO 2PbO 2  2PbO + O 2 C 2 H 6 + O 2  CO 2 + H 2 O

19. Balance the following equations and write the ratio of coefficients:

20. Find the products 1)____ Na + ____ FeBr3  2)____ NaOH + ____ H2SO4  3)____ C2H4O2 + ____ O2 

21. Write the total ionic equation

22. Write the net ionic equation

23. Find the products, balance, and create the total and net ionic equations