Five Types of Chemical Reactions
Mikayla Iddings
Synthesis
Definition: A reaction in which two or more substances react to form a single substance.
A + B --> AB
Example: 2Na + Cl(2)
Decomposition
Definition: A reaction in which a compound breaks down into two or more simpler substances.
AB --> A + B
Example: 2H(2)O --> 2H(2) + O(2)
Single-Replacement
Definition: A reaction in which one element take the place of another element in a compound
A + BC --> B + AC
Example: 2K + 2H(2)O --> H(2) + 2KOH
Double-Replacement
Definition: One in which two different compounds exchange positive ions one form two new compounds
AB + CD --> AD + CB
Example: CaCO(3) + 2HCl --> CaCl(2) + H(2)CO(3)
Combustion
Definition: One in which a substance reacts rapidly with oxygen, often producing heat and light.
C(-)H(-) + O(2) --> CO(2) + H(2)O
Example: CH(4) + 2O(2) --> CO(2) + 2H(2)O