types of Chemical Reactions

1. Synthesis (Combination) Reaction:
   • Description: Two or more simple substances combine to form a more complex product.
   • General Formula: A + B = A B
   • Example:2H₂+O₂=2H₂O
2. Decomposition Reaction:
   • Description: A single compound breaks down into two or more simpler substances.
   • General Formula:AB=A+B
   • Example: 2H₂O₂=2H₂O+O₂
3. Single Displacement (Replacement) Reaction:
   • Description: An element in a compound is replaced by another element.
   • General Formula:A+BC=AC+B
   • Example:Zn + 2HCl= ZnCl₂+ H₂
4. Double Displacement (Replacement) Reaction:
   • Description: Two compounds exchange ions or bonds to form two new compounds.
   • General Formula: AB+CD=AD+CB
   • Example:NaCl + AgNO₃ = NaNO₃ + AgCl
5. Combustion Reaction:
   • Description: A substance reacts with oxygen, often producing heat and light.
   • General Formula:Fuel+ O₂= CO₂ + 2H₂O (for complete combustion)
6. Neutralization Reaction:
   • Description: An acid reacts with a base to produce a salt and water.
   • General Formula:Acid+Base=Salt+H₂O
   • Example: HCl+NaOH=NaCl+H₂O
7. Redox Reaction (Oxidation-Reduction):
   • Description: Involves the transfer of electrons between two species, where one substance is oxidized and the other is reduced.
   • General Formula:Oxidant+Reductant→Reduced+Oxidized
   • Example: 2Na + Cl =2NaCl
8. Precipitation Reaction:
   • Description: Two soluble salts react in aqueous solution to form an insoluble solid (precipitate).
   • General Formula:AB(aq)+CD(aq)=AD(s)+CB(aq)
   • Example: BaCl₂+ Na₂SO₄Ba=SO₄(precipitate) + 2NaCl
9. Acid-Base Reaction:
   • Description: A reaction where an acid reacts with a base, typically producing water and a salt.
   • General Formula:HA+BOH=BA+H₂O
   • Example:H₂SO₄ + 2NaOH= Na₂SO₄ + 2H₂O
10. Endothermic Reaction
11. Exothermic Reaction
12. difference between endothermic and exothermic Reaction