Molecular formula :
nature : one with the same formula, the difference between a composition or certain atoms, structure and chemical properties similar to the physical properties of carbon atoms increases with regular changes in the family compound, known as the same series. With a series of compounds called each other homologue. For example, methane, ethane, propane, etc. ... alkanes with the same formula CnH2n +2 , among them the formation of only one or more of a difference equation UB>2, and the structural and chemical properties similar to the same series of compounds.
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