Classification of chemical reactions.

| August 9, 2021 | education

Synthesis reactions. Two or more reagents combine to make 1 new product.
Examples:
C (s) + O2 (g) → CO2 (g).
H2O (l) + SO3 (g) → H2SO4 (aq).

Decomposition reactions. One reactant breaks down to form 2 or more products.
Examples:
H2CO3 (aq) → H2O (l) + CO2 (g).
CaCO3 (s) → CaO (s) + CO2 (g).

Reactions with one substitution. One element replaces a similar element of an adjacent reagent compound.
Examples:
Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s).

Double substitution reactions. The two ionic compounds will exchange ions, producing 2 new ionic compounds.
Examples:
NaCl (aq) AgNO 3 (aq) → NaNO3 (aq) + AgCl (s).
HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (1).

Combustion reactions. One element or compound combines with the energy to evolve oxygen. This rapid oxidation is called combustion.
Examples:
C (s) + O2 (g) → CO2 (g) + energy.
2Mg (s) + O2 (g) → 2MgO (s) + energy.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.