1. Start on _____ Save __ + __ till end Use _________ if needed Balance _______ if they are intact View water as _____ Chemical Reactions Evidence Color Change Gas Evolution Energy Change PPT Reaction Equations Reactants (aq) (s) (l) (g) atom molecule ion F.U. Law of conservation balancing Law of def. comp. Write Formulas Correctly Change Coefficients (if needed) Left H O fractions groups HOH Reaction Categories Syn. Dec. S.R. D.R. Comb. comp. analysis single displ. burning …then those that show a transfer of electrons REDOX Reduction Oxidation (Gaining electrons) (Losing electrons) …seen by analysis of oxidation states Products Metal v. Nonmetal PPT

2. The burning of barium metal Ba (s) + O 2(g) BaO (s) Combustion, Synthesis atom molec. F.U. 2 2 REDOX too Now add this product to water and do the complete analysis 0 0-2 +2

3. Barium oxide combines with water… BaO (s) + H 2 O (l) Ba(OH) 2 (aq) Synthesis FU molec. F.U. Not REDOX If you added this product to a solution of copper(II) nitrate what type of reaction it would be? +2 -2 +1 -2 +2+1 PPT!

4. fluorine gas is added to a calcium iodide solution F 2(g) + CaI 2(aq) CaF 2(aq) + I 2(s) nonmetal single replacement molec. F.U. F.U molec. Balanced As Is! REDOX too! 0 +2 0

5. A solution of potassium sulfate combines with a solution of calcium chloride K 2 SO 4(aq) + CaCl 2(aq) CaSO 4(s) + KCl (aq) double replacement F.U. F.U F.U. 2 not REDOX producing calcium sulfate and potassium chloride +1 +6+2 -2 +2 +6 -2 +1

6. The burning of heptane (C 7 H 16 )… C 7 H 16(l) + O 2(g) CO 2(g) + H 2 O (l) Combustion (hydrocarbon) molec. molec. 11 7 8 REDOX too! producing carbon dioxide and water -16/7 +1 +4 +0 +1 -2

7. lithium carbonate is heated strongly… Li 2 CO 3 (s) Li 2 O (s) + CO 2(g) Decomposition F.U. F.U. Molec. not REDOX producing lithium oxide and carbon dioxide +1 +4+1 -2 +4 -2