The chemical reaction arrow is one straight arrow pointing from reactant(s) to product(s) and by-products, sometimes along with side products. A → B. ... The single arrow emphasizes one direction of chemical change (from A to B).
What does the arrow → mean in the reaction?
Common Symbols
For example: → indicates where the forward reaction is favored: in other words, more of the product is being produced. ← indicates where the reverse reaction is favored: in other words, more of the reactant is being produced. ... If the reaction requires energy, it is often indicated above the arrow.
What does the symbol in a chemical equation mean?
In the symbolic equation, chemical formulas are used instead of chemical names for reactants and products, while symbols are used to indicate the phase of each substance.