Types of Chemical Reactions
By - Lizzy Edwards
- 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
- 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
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
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
- 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