Types of Chemical Reactions

By Payton Pierce

Synthesis

  • Definition: a reaction in which two or more substances react to form a single substance.
  • Equation: A+B --> AB
  • Example: H2+O2 --> H2O

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Decomposition

  • Definition: a reaction in which a compound breaks into two or more simpler substances.
  • Equation: AB --> A+B
  • Example: NaCl --> Na+Cl2

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Single Replacement

  • Definition: a reaction in which one element takes the place of another element in a compound.
  • Equation: A+BC --> B+AC
  • Example: F2+MgBr2 --> Br2+MgF2
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Double Replacement

  • Definition: two different compounds exchange positive ions and form two new compounds.
  • Equation: AB+CD --> AD+BC
  • Example: NaBr+H2SO4 --> HBr+Na2SO4
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Combustion

  • Definition: a substance reacts rapidly with oxygen, often producing hear and light.
  • Equation: none
  • Example: CxHx+O2 --> CO2+H2O
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