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How is a synthesis reaction different from a decomposition reaction ( use your notes )?

Day 6 5-9. Q Of The Day. How is a synthesis reaction different from a decomposition reaction ( use your notes )?. Day 6 5-9. MAKE UP. YOU MUST BE WORKING ON CHEMISTRY!!!. Question of the Day. ZnS + O 2  ZnO + SO 2. Balance the equation above.

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How is a synthesis reaction different from a decomposition reaction ( use your notes )?

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  1. Day 6 5-9 Q Of The Day How is a synthesis reaction different from a decomposition reaction (use your notes)?

  2. Day 6 5-9 MAKE UP YOU MUST BE WORKING ON CHEMISTRY!!!

  3. Question of the Day ZnS + O2  ZnO + SO2 Balance the equation above. 2ZnS + 3O2  2ZnO + 2SO2 5-12 Day 5

  4. What is a synthesis reaction? What is a decomposition reaction? What is a single replacement reaction?

  5. Types of Chemical Equations Double-replacement Reactions Double-replacement reactions – the ions of 2 cmpds. exchange places in an aqueous sltn. to form 2 new cmpds. AX + BY AY + BX - - + - + - + + A, B, X, and Y = ions Example: 2KI(aq) + Pb(NO3)2(aq) PbI2(s) + 2KNO3(aq) AX BY BX AY

  6. Types of Chemical Equations Double-replacement Reactions Double replacement reactions always have ... 2 reactants and 2 products - all compounds In the margin:  double reps. can form precipitates  most acid-base reactions are double resp.

  7. Practice What type of reaction is: AX + BY → AY + BX compound compound compound compound

  8. Practice What type of reaction is: X + BY → Y + BX element element compound compound

  9. Practice What type of reaction is: X + BY → BYX element compound compound

  10. Practice What type of reaction is: X + Y → XY element compound element

  11. Practice What type of reaction is: X + BY → Y + BX element element compound compound

  12. Practice What type of reaction is: BY → Y + B element compound element

  13. Quick Talk Reactants Synthesis Chemical reaction Double replacement Products Aqueous Decomposition Coefficient Bonds Single replacement

  14. Day 6 5-13 Q Of The Day How is a double replacement reaction different than a single replacement reaction (USE NOTES)?

  15. Objective / Essential Question How does the Law of Conservation of Matter apply to chemical reactions? How do substances react to form products?

  16. Practice What type of reaction is: H2(g) + F2(g) 2HF(g)

  17. Practice What type of reaction is: 2 2 NaBr + Cl2 NaCl + Br2

  18. Types of Chemical Equations Combustion Reactions Combustion reactions – a substance combines with oxygen, releasing a large amount of energy (light or heat) Unique equations Examples: Hydrogen gas: 2H2(g) + O2(g) 2H2O(g) Propane: C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(g)

  19. Assignment Review section 11.2 AND complete #s 13 on page 359 20-22 (skip parts a and d for # 21) and 24 on page 367 Day 6 5-13

  20. Types of Chemical Equations Neutralization Reactions Neutralization reactions – reaction between an _____ and a _____ - produce a ____ (ionic compound) and water - pH is ____________ - moves toward __ acid base salt neutralized 7

  21. Types of Chemical Equations Neutralization Reactions Example: HCl + NaOH  ____________ Example: H2SO4 + Ba(OH)2 _________

  22. Day 4 5-2 WOOSH Balance each of the following chemical reactions AND explain what type of reaction it is: a. H2(g) + O2(g) H2O(l) 2 2 Synthesis & Combustion

  23. http://education.jlab.org/elementbalancing/index.html http://www.files.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm - bonus

  24. http://education.jlab.org/elementbalancing/index.html http://www.files.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm - bonus

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