Describe a chemical equation with an example.

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Solution

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae.
Chemical equation can be represented in words as well as in symbols and formulae
Example
To form hydrochloric acid (H₂SO₄), hydrogen (H) is directly combined with chlorine (Cl). This is a rapid reaction that takes place above 250⁰C.
This reaction can be represented in words as below
hydrogen + chlorine = hydrochloride acid
The above equation can be represented in symbols and formulae as
H₂ + Cl₂ = 2HCl

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