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JAMB Chemistry 2004 Question 2

Question 2

Separation of Mixtures

A chemical reaction is always associated with

  1. A.an increase in the composition of one of the substances.
  2. B.a change in the volume of the reactants
  3. C.a change in the nature of the reactants
  4. D.the formation of new substances
Show the answer and explanation

Answer: D (the formation of new substances)

Explanation

The defining feature of a chemical change is that new substances are formed.