33 Science -- Chemical Reaction

Differentiate between.Reactants and productsWord equation and formulae equationCombination reaction and decomposition reactionPositive catalyst and negative catalyst

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.

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.

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.

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.

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.

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