Key Stage 4
Meaning
Reversible Reactions are reactions in which the products of that reaction, may themselves react to form the original reactants.
About Reversible Reactions
- Reversible reactions use the symbol ⇌ to show that the reaction can happen both ways.
- A reaction mixture which can undergo a reversible reaction will reach a state of dynamic equilibrium where there is a constant amount of the reactants and products as the reaction keeps happening in both directions.
Examples
Hydrogen + Nitrogen ⇌ Ammonia
<chem> 3H2(g) + N2(g) <=> 2NH3(g) </chem>
Calcium Oxide + Carbon Dioxide ⇌ Calcium Carbonate
<chem> CaO(aq) + CO2(g) <=> CaCO3(s) </chem>
Ammonium Chloride ⇌ Ammonia + Hydrochloric Acid
<chem> NH4Cl <=> NH3 + HCl </chem>