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CONTENTS MODULE 1.2 MAIN CLASSES OF INORGANIC

COMPOUNDS

LECTURE 3. MAIN CLASSES OF INORGANIC COMPOUNDS

PROGRAM QUESTIONS:

3.1 OXIDES

3.2 BASES

3.3 ACIDS

3.4 SALTS

3.1 Oxides
The most common classification is based on the acid-basic principle.

According to it, the main classes of inorganic compounds are oxides, bases, acids
and salts.

Oxides are compounds that consist of atoms of two elements, one of which is
Oxygen with the oxidation state of -2.

The oxidation state is the conditional charge given to the atom in the chemical

compounds, considering all the chemical bonds ion.

To determine the oxidation state of elements in oxides, the oxidation state of

Oxygen (-2) is multiplied by the number of Oxygen atoms.

Then the resulting number with the opposite sign is divided by the number of

the element atoms.

For example,

,

,

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