Arrows symbol
\rightleftharpoonsThe \rightleftharpoons symbol is used to denote chemical equilibrium or reversible reactions in chemistry. It indicates that the reaction can proceed in both forward and backward directions, reaching a state where the rates of the forward and reverse reactions are equal.
A reversible chemical reaction where reactants A and B form products C and D.
A + B \rightleftharpoons C + DThe Haber process for synthesizing ammonia, showing the equilibrium between nitrogen, hydrogen, and ammonia.
N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)The equilibrium between water, carbon dioxide, and carbonic acid in aqueous solution.
H_2O(l) + CO_2(g) \rightleftharpoons H_2CO_3(aq)