A word equation is an expression of a chemical reaction or mathematical equation using words rather than letters numbers and operators. An equation is a mathematical statement that two things are equal. A representation of a chemical reaction using symbols of the elements to indicate the amount of substance usually in moles of each reactant and product.
ɪˈkweɪʒən -ʃən noun.
Equation noun STATEMENT C1 C a mathematical statement in which you show that two amounts are equal using mathematical symbols. 1 Mathematics A statement that the values of two mathematical expressions are equal indicated by the sign. The equation is the definition of the lineIf the line is undefined then it has no equation. It also contains continued fractions quadratic equations sums of power series and a table of sines.