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a process that releases energy from the system. This decreases the internal energy of the system (decreases the enthalpy of the system).
the mass of a formula unit relative to one atomic mass unit.
calculating the volume of a product when the mass of a reactant or product is given.
a method of separating mixtures based on differences in their boiling points.
substances such as elements or compounds, that cannot be broken down into simpler substances by...