1. Predict! Identify the type of reaction Predict the products Write and balance the equation

2. THIS IS GRADED HOMEWORK. WORK INDEPENDENTLY. YOU MAY USE NOTES AND TEXT. All reactions in each section are the same type (combustion, single displacement, double displacement, synthesis/direct combination, decomposition) Synthesis and decomposition are reverse reactions: Synthesis 2Na + Cl 2  2NaCl Decomposition 2NaCl  2Na + Cl 2 …so, if you don’t find the general example you need in one category, look for the reverse in the other category. Use your text, notes, or example handout to predict these. Hydrocarbon combustion reactants contain C, H, and sometimes O. You do not need to predict if reactions will actually happen. You do not need to use the solubility chart or activity series for this assignment. Use criss-cross to write the correct formulas for the products. Balance. WE WILL CHECK ANSWERS TOGETHER IN CLASS. EACH ANSWER WILL BE EITHER COMPLETELY RIGHT OR IT WILL BE WRONG.

3. SYNTHESIS or DIRECT COMBINATION a. MgCl 2 + 3O 2  Mg(ClO 3 ) 2 b. 4Na + O 2  2Na 2 O c. K 2 O + H 2 O  2KOH d.BaO + CO 2  BaCO 3

4. DECOMPOSITION e. 2Ag 2 O  4Ag + O 2 f. 2Al(OH) 3  Al 2 O 3 + 3H 2 O g. H 2 SO 4  SO 3 +H 2 O h. ZnCO 3  ZnO + CO 2

5. SINGLE DISPLACEMENT i. 2Al + 3Pb(NO 3 ) 2  3Pb + 2Al(NO 3 ) 3 j. Br 2 + CaI 2  CaBr 2 + I 2 k. Zn + H 2 SO 4  ZnSO 4 + H 2 l. MgI 2 + Cl 2  MgCl 2 + I 2

6. DOUBLE DISPLACMENT m. 3Ca(OH) 2 + 2H 3 PO 4  Ca 3 (PO 4 ) 2 + 6H 2 O n. AgNO 3 + KCl  AgCl + KNO 3 o. Al(OH) 3 + 3HC 2 H 3 O 2  Al(C 2 H 3 O 2 ) 3 + 3H 2 O p. Cd 3 (PO 4 ) 2 + 3(NH 4 ) 2 S  3CdS + 2(NH 4 ) 3 PO 4

7. COMBUSTION q.2C 6 H 6 + 15O 2  12CO 2 + 6H 2 O r.C 25 H 52 + 38O 2  25CO 2 + 26H 2 O s.2C 2 H 6 + 7O 2  4CO 2 + 6H 2 O t.C 12 H 22 O 11 + 12O 2  12CO 2 + 11H 2 O (Note: the hydrocarbons may contain oxygen, too. The products of combustion remain the same)