
Interpretation :
The general name of the substances before and after a
Concept Introduction :
A chemical equation is the representation of a chemical change with the formula of all the compounds.

Answer to Problem 5A
Substances present before a chemical reaction takes place are called reactants and substances present after the reaction takes place are called products.
Explanation of Solution
Let’s consider a hypothetical chemical reaction in which A and B react to produce C and D as shown below.
In this reaction, A and B were present before the reaction takes place. Thus A and B are called reactant or starting materials.
C and D are obtained after the reaction takes place. Thus, C and D are called products.
Substances before reaction are called reactants and substances obtained after the reaction is called products.
Chapter 7 Solutions
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