1. Types of Chemical Reactions

2. Two or more substances combine to form a new compound A + X → AX 2Mg(s) + O 2 (g) → 2MgO(s) Synthesis Reaction

3. Synthesis Reaction Finish and balance the following equations 1.Na(s) + Cl 2 (g) → ? 2.Fe(s) + O 2 (g) → ? 3.Magnesium solid reacts with fluorine gas to form ? 4.Barium solid and sulfur solid (S 8 ) react to form?

4. Synthesis Reaction Finish and balance the following equations 1.2Na(s) + Cl 2 (g) → 2NaCl(s) 2.You can get multiple answers for transition metals: (you would have to be told what charge) –2Fe(s) + O 2 (g) → 2FeO(s) –4Fe(s) + 3O 2 (g) → 2Fe 2 O 3 (s) 3.Mg(s) + F 2 (g) → MgF 2 (s) 4.8Ba(s) + S 8 (s) → 8BaS(s)

5. Decomposition Reactions A single compound under goes a reaction that produces two or more simpler compounds. AX → A + X H 2 O 2 (l) → H 2 O(l) + O 2 (g)

6. Single Replacement Reactions One element replaces a similar element in a compound A + BX → AX + B or Y + BX → BY + X Cu(s)+2AgNO 3 (aq)→Cu(NO 3 ) 2 (aq)+2Ag(s)

7. Single Replacement Rxn Finish and balance the following equations 1.Mg(s) + HCl(aq) → ? 2.KBr(aq) + Cl 2 (g) → ? 3.Aluminum solid reacts with aqueous lead (II) nitrate to form…? 4.Fluorine gas and aqueous sodium chloride react to form…?

8. Single Replacement Rxn Finish and balance the following equations Mg(s) + 2HCl(aq) → H 2 (g) + MgCl 2 (aq) 2KBr(aq) + Cl 2 (g) → 2KCl(aq) + Br 2 (l) 2Al(s)+3Pb(NO 3 ) 2 (aq)→3Pb(s)+2Al(NO 3 ) 3 (aq) F 2 (g) + 2NaCl(aq) → 2NaF(aq) + Cl 2 (g)

9. Double Replacement Reaction The ions of two compounds exchange places to form two new compounds AX + BY → AY + BX NaCl(aq)+ AgNO 3 (aq) → AgCl(s)+NaNO 3 (aq)

10. Double Replacement Rxn Finish and balance the following equations 1.FeS(s) + HCl(aq) → ? 2.HCl(aq) + NaOH(g) → ?

11. Double Replacement Rxn Finish and balance the following equations FeS(s) + 2HCl(aq) → H 2 S(g) + FeCl 2 (aq) HCl(aq) + NaOH(g) → NaCl(aq) + H 2 O(l)

12. Combustion Reactions A substance combines with oxygen, releasing a large amount of energy in the form of heat and light. This rxn will always form water vapor. 2C 2 H 2 (g) + 5O 2 (g) → 2H 2 O(g) + 4CO 2 (g) C 12 H 22 O 11 (s) + 12O 2 (g) → 11H 2 O(g) + 12CO 2 (g)

13. Summary