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Predicting Products of Chemical Reactions.

Identify the type of reaction. Two elements: One compound: One compound, One element: Two compounds Hydrocarbon + O 2. Synthesis Decomposition Synthesis or Single replacement Synthesis or Double replacement Combustion. Predicting Products of Chemical Reactions.

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Predicting Products of Chemical Reactions.

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  1. Identify the type of reaction. Two elements: One compound: One compound, One element: Two compounds Hydrocarbon + O2 Synthesis Decomposition Synthesis or Single replacement Synthesis or Double replacement Combustion Predicting Products of Chemical Reactions.

  2. Combustion reaction • The product is always!!!!!!!!! CO2 + H2O

  3. Double Replacement • Switch the positive ions: • Check Oxidation numbers: Examples: HOH + KCl  HCl + KOH Al2(SO4)3 + NH4ClO3  (NH4)2SO4 + Al(ClO3)2

  4. Practice these: • BaCl2 + K2O • MgF2 + Li2O • KI + Pb(NO3)2 • FeS + HCl

  5. Single Replacement • Determine if the single element is positive or negative. • Replace the same charged element in the compound. Examples: Al + Pb(NO3)2 Al(NO3)3 + Pb Mg + HCl  MgCl2 + H2

  6. Practice these: • BaCl2 + K • MgF2 + O2 • K + Pb(NO3)2 • FeS + Cl2

  7. Synthesis • If there are only two elements: • Combine them into a binary compound. • Check oxidation number Examples: Rb + S  Rb2S Ba + S  BaS

  8. Practice these: • H2 + O2 • Mg + Cl2 • K + N • Ca + S

  9. Synthesis • If there are three or more elements: • THERE WILL BE AT LEAST ONE POLYATOMIC ION. • ARRANGE THE ELEMENTS INTO A COMMON POLYATOMOC ION. THE OTHER ION IS THE ELEMENT LEFT OVER. Examples: H2O + SO2 H2SO4 Ca + SO2 + O2 CaSO4

  10. Practice these: • NH3+H2O  • H2SO3 + O2 • CaO + SO2  • MgO + PO3 

  11. Decomposition: • Products depends on the compound decomposing: • Binary compounds simply break into individual elements: Examples: H2O  H2 + O2 MgCl2 Mg + Cl2

  12. Practice these: • NH3 • SO2 • CaO • MgO

  13. Hydroxides: • Metal hydroxide + H2O Examples: NaOH  Na2O + H2O Ca(OH)2  CaO + H2O

  14. Practice these: • Al(OH)3  • LiOH • Fe(OH)3 • CuOH

  15. Carbonates: • Metal oxide + CO2 Examples: CaCO3 CaO + CO2 PbCO3 PbO + CO2

  16. Practice these: • Li2CO3 • SrCO3 • Cu2CO3 • MgCO3

  17. Chlorates • Metal Chloride + O2 Examples: Ba(ClO3)2 BaCl2+O2 NaClO3 NaCl + O2 Fe(ClO3)3 FeCl3 + O2

  18. Practice these: • LiClO3 • Sr(ClO3)2 • CuClO3 • Mg(ClO3)2

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