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chemical calculations that involve amounts of different chemicals.
the temperature at which a substance changes phase from a solid to a liquid at a specific or...
having fixed amounts of energy.
(amu) is equal to 1/12 of the mass of the 12C atom.
a white crystalline organic compound used as a fertilizer, in medicine and in resins.
a state in which the outer energy level of an atom of any element is completely filled with...