Types of Chemical Reactions

By - Lizzy Edwards

Synthesis :

  • A synthesis reaction is a reaction in which two or more substances react to form a single substance.
  • A + B ➝ AB
  • 2Na + Cl2 ➝ 2NaCl or 2H2 + O2 ➝ 2H2O
Big image

Decomposition :

  • A decomposition reaction is a reaction in which a compound breaks down into two or more simpler substances.
  • AB ➝ A + B
  • 2H2O ➝ 2H2 + O2 or CaCO3 ➝ CaO + CO2
Big image

Single Replacement :

  • A single-replacement reaction is a reaction in which one element takes the place of another element in a compound.
  • A + BC ➝ B + AC
  • Cu + 2AgNO3 ➝ 2Ag + Cu(NO3)2 or 2K + 2H2O ➝ H2 + 2KOH
Big image

Double Replacement :

  • A double-replacement reaction is one in which two different compounds exchange positive ions and form two new compounds.
  • AB + CD ➝ AD + CB
  • Pb(NO3)2 + 2KI ➝ PbI2 + 2KNO3 or H2CO3 ➝ CO2 + H2O
Big image

Combustion :

  • A combustion reaction is one in which a substance reacts rapidly with oxygen, often producing head and light.
  • Couldn't find an equation.
  • CH4 + 2O2 ➝ CO2 + 2H2O or 2H2 + O2 ➝ 2H2O
Big image