Wednesday 41107 Bday

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Wednesday 4/11/07B-day

• Chemical Equations (Ch 11)

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Paper work

• Stuff to collect

• Stuff to distribute

• Section Review 11.1
• Section Review 11.2
• Section Review 11.3

• nothing

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Objectives for CH 11

• Write a word equation and a formula equation for
  a given chemical reaction.
• Balance a formula equation by inspection.
• Classify a reaction as a synthesis,
  decomposition, single-displacement,
  double-displacement, or combustion reaction.
• Predict the products for chemical reactions.
• Use an activity series to predict whether a given
  reaction will occur and what the products will be.

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Predicting Products

• Synthesis (a.k.a. Composition)
• O2 H2
• O2 H2 H2O
• Decomposition
• Li2CO3(s)
• Li2CO3(s) Li2O(s) CO2(g)
• Ba(ClO3)2(s)
• Ba(ClO3)2(s) BaCl2(s) 3O2(g)
• Al(OH)3(s)
• Al(OH)3(s) Al2O3(s) H2O(g)
• Single Replacement
• Li(s) ZnCl2(aq)
• Li(s) ZnCl2(aq) LiCl(aq) Zn(s)

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Predicting Products

• Double Replacement (a.k.a. Ionic Rxns)
• Pb(NO3)2 (aq) H2SO4(aq)
• Pb(NO3)2 (aq) H2SO4(aq) PbSO4(s)
  HNO3(aq)
• Pb2 (aq) SO42-(aq) PbSO4(s)
• You might need a Solubility Chart.
• Pb(C2H3O2)2 (aq) HCl(aq)
• Pb(C2H3O2)2 (aq) HCl(aq) PbCl2(s)
  HC2H3O2(aq)
• Pb2(aq) Cl1-(aq) PbCl2(s)

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Predicting Products

• Double Replacement (a.k.a. Ionic Rxns)
• Hydrochloric acid aluminum carbonate
• HCl (aq) Al2(CO3)3(aq) CO2(g) H2O(l)
  AlCl3(aq)
• Sulfurous acid lithium carbonate
• H2SO3 (aq) Li2CO3(aq) CO2(g) H2O(l)
  Li2SO3(aq)

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Predicting Products

• Combustion Rxns
• C3H8(g) O2(g)
• C3H8 (g) O2(g) CO2(g) H2O(g)
• C10H18O6(g) O2(g)
• C10H18O6 (g) O2(g) CO2(g) H2O(g)

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Activity Series

• List of elements that will help you to decide if
  a reaction actually takes place.
• Activity Series
• The higher element always replaces the lower
  element in single replacement reactions.
• Read the information on the Activity Series when
  deciding if elements react with acids, steam, or
  cold water.
• Also read the Activity Series when deciding if an
  element will form an oxide or not.
• Lastly, reference the Activity Series when
  deciding if an oxide of an element will
  decompose.

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Predicting Products using the Activity Series

• Single Replacement Rxns
• HCl(aq) Sn(s)
• HCl (aq) Sn(s) SnCl2(aq) H2(g)
• H2O(g) Ni(s)
• H2O(g) Ni(s) NO RXN
• H2O(g) Mg(s)
• H2O(g) Mg(s) Mg(OH)2(aq) H2(g)

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Predicting Products using the Activity Series

• Cu(s) O2(g)
• Cu(s) O2(g) CuO(s)
• Au(s) O2(g)
• Au(s) O2(g) NO RXN
• K(s) O2(g)
• K(s) O2(g) K2O(s)

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Predicting Products using the Activity Series

• CaO(s) H2(g) heated
• CaO(s) H2(g) NO RXN
• FeO(s) H2(g) heated
• FeO(s) H2(g) Fe(s) H2O(g)
• Ag2O(s) heated
• Ag2O(s) H2(g) Ag(s) O2(g)

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Homework for tomorrow

• Chemical Equations Balancing Section 8.1 should
  be done for tomorrow.
• You will have a quiz on balancing on Friday.