Types of Chemical Reactions

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Types of Chemical Reactions
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Synthesis Reactions

• Smaller atoms/molecules combine to form larger
  molecules

A B ? AB
2H2 O2 ? 2H2O
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Synthesis Reaction
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Decomposition Reaction

• The splitting of a large molecule into elements
  or smaller molecules

AB ? A B
Complimentary to synthesis reaction
2H2O ? 2H2 O2
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Decomposition Reaction
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Single Displacement

• One element (or replaces) another element from a
  compound

X AB ? AX B
Mg 2AgNO3 ? 2Ag Mg(NO3)
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Single Displacement
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Double Displacement

• Metals in different compounds replace each other
  (switch partners)

AB XY ? AY XB
Pb(NO3)2 2KI ?PbI2 2KNO3
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Double Displacement
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Combustion

• Fuel burned in the presence of oxygen to produce
  an oxide and heat energy

AB O2(g) ? oxide of A oxide of B
C(s) O2(g) ? CO2(g) C4H10(l) O2(g) ? CO2(g)
H2O(g)
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Incomplete Combustion

• Occurs when fuel is not completely converted into
  carbon dioxide and water
• Can result in the production of toxic carbon
  monoxide

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Neutralization

• A type of double displacement reaction

Acid Base ? Salt H2O
HCl(aq) NaOH(aq) ? NaCl(aq) H2O(l)