What is the purpose of the arrow in a chemical equation?
A.
It indicates the direction in which the reaction occurs.
B.
It separates the elements from the compounds.
C.
It indicates the direction of increase in the number of molecules.
D.
It indicates the direction of heat movement in a reaction.
Reaction arrows are used to describe the state or progress of a reaction. The chemical reaction arrow is one straight arrow pointing from reactant(s) to product(s) and by-products, sometimes along with side products.
