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Title: Imprtant points in chemistry
Description: Easy to learn definition in chemistry or students

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Points to remember (Important points of chapter atom and molecules)
*The law of conservation o mass states that there is no detectable loss or gain in total mass of the
substance in a chemical reaction
...

*An atom is the smallest particles of an element which can take part in chemical reaction
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*The atomic mass unit (amu) is equal to one-twelfth (1/12) the mass o an atom of carbon -12
...



Title: Imprtant points in chemistry
Description: Easy to learn definition in chemistry or students