or

Differentiate between.

  1. Reactants and products
  2. Word equation and formulae equation
  3. Combination reaction and decomposition reaction
  4. Positive catalyst and negative catalyst

a. Reactants and products.

ReactantsProducts
The chemicals that undergo chemical changes are reactants.The chemicals that are formed as a result of the reaction are products.
These are the chemicals before the reaction between them occurs.These are the chemicals after the reaction between them occurs.

b. Word equation and formulae equation.

WordFormulae
It is the representation of chemical equations by words.It is the representation of chemical equations by symbols.
It is less informative.It is more informative.
It is longer and non-convenient.It is shorter and convenient.

c. Combination reaction and decomposition reaction.

CombinationDecomposition
In this reaction, different reactants are combined to form a single product.In this reaction, a single reactant is decomposed to form multiple products.
It occurs either in the presence or absence of heat.It occurs in the presence of heat only.

d. Positive catalyst and negative catalyst.

PositiveNegative
It increases the rate of a chemical reaction.It decreases the rate of a chemical reaction.
It is used to accelerate the reaction.It is used to slow down the reaction.
Mn02 is an example.Glycerine is an example.