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Section 3: Five Types of Reactions

1. Combination/ Synthesis 2. Decomposition 3. Single Replacement 4. Combustion 5. Double Replacement. Section 3: Five Types of Reactions. 1. Combination/Synthesis. 2 H 2 + O 2  2 H 2 O. 1. Combination/Synthesis. “The Marriage” only 1 product. A + B  A B.

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Section 3: Five Types of Reactions

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  1. 1. Combination/Synthesis 2. Decomposition 3. Single Replacement 4. Combustion 5. Double Replacement Section 3: Five Types of Reactions

  2. 1. Combination/Synthesis 2 H2 + O2  2 H2O

  3. 1. Combination/Synthesis “The Marriage” only 1 product A+ BAB 2H2 + O2 2H2O

  4. 2. Decomposition H2O2 H2 + O2

  5. 2. Decomposition “The Break-up” only 1 reactant ABA+B H2O2 H2+ O2

  6. 3. Single Replacement Zn + 2HCl  ZnCl2 + H2

  7. 3. Single Replacement “Cuttin’ In” 1 element replaces another in a compound A+BCAC+B Zn + 2HCl ZnCl2+ H2

  8. 4. Combustion Burnin’ burning a hydrocarbon(CxHy) in O2 always forms CO2and H2O CxHy+O2  CO2+H2O CH4+2O2 CO2+2H2O

  9. 1–4 Redox Synthesis A0 + B0 → A+B– SingleReplacement C0 + A+B– → C+B– + A0 Zn + 2HCl  ZnCl2 + H2 2H2 + O2 2H2O Decomposition A+B– → A0 + B0 Combustion CxHy + O2 → CO2 + H2O +4 + -2 -2 + – 0 H2O2 H2 + O2 CH4 + 2O2 CO2 + 2H2O

  10. 5. Double Replacement NOT REDOX NaCl + AgF  NaF + AgCl

  11. 5. Double Replacement “Switchin’ Partners” ions in two compounds “change partners” AB+CDAD +CB NOT REDOX NaCl + AgF NaF + AgCl

  12. Quick Quiz! 1. What type of reaction is described by the following equation? 6 Li + N2 2 Li3N A. combination reaction B. decomposition reaction C. single-replacement reaction D. combustion reaction REDOX?

  13. Quick Quiz. 2. What type of reaction is described by the following equation? Mg + HNO3 Mg(NO3)2 + H2 A. combination reaction B. decomposition reaction C. single-replacement reaction D. double-replacement reaction REDOX?

  14. Quick Quiz. 3. What type of reaction is described by the following equation? 2 C2H5OH + 7 O2 4 CO2 + 6 H2O A. double-replacement reaction B. decomposition reaction C. single-replacement reaction D. combustion reaction REDOX?

  15. Quick Quiz. 4. What type of reaction is described by the following equation? Pb(NO3)2 + 2 NaCl  PbCl2 + 2 NaNO3 A. combination reaction B. decomposition reaction C. double-replacement reaction D. single-replacement reaction REDOX?

  16. Quick Quiz. 5. Balance the following equation and indicate whether it represents a combination or decomposition reaction. H2SO4 H2O2 + SO2 A. H2SO4 H2O2 + SO2 combination reaction B. H2SO4 H2O2 + SO2 decomposition reaction C. H2SO4 2H2O2 + SO2 combination reaction D. H2SO4 2H2O2 + SO2 decomposition reaction REDOX?

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