What is the chemical difference between acids and bases?

The chemical differences between acids and bases are: ionization and redox reaction.

Explanation:

Ionization: acids are substances that form hydrogne ion,  as the only positively charged ion when in solution; whereas bases produce hydroxonium ion, when dissociated in water. This directly affects the pH of the substances: Acids are 0-6.9 whereas alkalis are 8-14.Reduction and oxidation (redox): reaction: acids are generally proton donors or electron pair recipient whereas a base is a proton recipient or electron pair donors.

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