30. State three key postulaes of Dalton'satomic theory.
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1) All matter is made of atoms. Atoms are indivisible and indestructible. 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms.
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1. All matters consists of tiny particles called atoms.
2. Atoms can be neither created nor destroyed.
3. Atoms of different elements can combine in fixed ratio to form compounds.
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