Acids

What are acids?

Acids are hydrogen containing substances that give H+ ions in water solution.

  • They have a sour taste and change the color of the indicators (red litmus paper to blue).
  • It reacts with metals like iron, zinc, and aluminum to liberate hydrogen.
  • It reacts with certain bases to form salts.

Hydrochloric, sulfuric, and nitric acid is the most common examples of inorganic mineral acid used widely in the laboratory and industry.

Modern acid and base theories are not only limited to aqueous solutions (Arrhenius theory). The electronic concept (Bronsted Lowry and Lewis theory) is also used to define all the acids and bases in chemistry or chemical science.

In this category, we discuss the definition and properties of acids and bases by different concepts or theories.

Definitions, Examples and Chemical Properties of Hard, Soft and Borderline Acids

Hard Soft Acid Base

Hard Soft Acid Base Theory Hard soft acid base theory or HSAB principle was proposed by Ralph Pearson in 1963. It is very helpful for predicting...

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