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coal that is heated in the absence of air to about 1 000 °C to remove volatile substances.
types of chemical âunitsâ â could be atoms, molecules, molecular fragments, simple or...
the part of polymerisation where monomers are continually added to form a longer and longer...
the sum of the relative atomic masses of the elements that make up the molecule.
a chemical reaction in which a solid product forms from aqueous (aq) reactants.
the mass of any substance relative to the amount of the substance; the mass of one mole of any...