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Types of Chemical Reactions

Chemical Reactions. Types of Chemical Reactions. A. Combustion. the burning of any substance in O 2 to produce heat. A + O 2  B. CH 4 (g) + 2O 2 (g)  CO 2 (g) + 2H 2 O (g). Reactants: Hydrocarbon + oxygen Some substance + oxygen Products: Carbon dioxide + water Oxide compound.

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Types of Chemical Reactions

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  1. Chemical Reactions Types of Chemical Reactions

  2. A. Combustion • the burning of any substance in O2 to produce heat A + O2 B CH4(g) + 2O2(g)  CO2(g) + 2H2O(g)

  3. Reactants: • Hydrocarbon + oxygen • Some substance + oxygen • Products: • Carbon dioxide + water • Oxide compound

  4. A. Combustion Na(s)+ O2(g)  Na2O(s) 4 2 C3H8(g)+ O2(g)  CO2(g)+ H2O(g) 5 3 4

  5. B. Synthesis • Reactants: 2 or more substances • Product: 1 single compound A + B  AB

  6. B. Synthesis H2(g) + Cl2(g)  2 HCl(g)

  7. B. Synthesis Al(s)+ Cl2(g)  AlCl3(s) 2 3 2

  8. C. Decomposition AB  A + B • Reactant: 1 single compound • Products: 2 or more substances

  9. C. Decomposition 2 H2O(l)  2 H2(g) + O2(g)

  10. C. Decomposition KBr(l)  K(s) + Br2(l) 2 2

  11. D. Single Replacement • one element replaces another in a compound A + BC  B + AC

  12. D. Single Replacement • Reactant: an element + a compound • Product: different element + different compound

  13. D. Single Replacement Cu(s) + 2AgNO3(aq)  Cu(NO3)2(aq) + 2Ag(s)

  14. D. Single Replacement • metal replaces metal (+) Fe(s)+ CuSO4(aq)  Cu(s)+ FeSO4(aq) • nonmetal replaces nonmetal (-) Cl2(g) + NaBr(s)  Br2(g) + NaCl(s)

  15. E. Double Replacement • ions in two compounds “change partners” • cation of one compound combines with anion of the other AB + CD  AD + CB

  16. E. Double Replacement • Reactants: 2 ionic compounds • Products: 2 different ionic compounds

  17. E. Double Replacement Pb(NO3)2(aq) + K2CrO4(aq)  PbCrO4(s) + 2KNO3(aq)

  18. E. Double Replacement Pb(NO3)2(aq)+ KI(aq)  2 2 PbI2(s)+ KNO3(aq)

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