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polymers are only able to form areas of crystallinity or crystalline domains, and are not crystalline throughout their structure.
the stratosphere extends from a height of 10 km to 50 km above the surface of the Earth.
elements whose valence electrons are accommodated in the d orbitals.
a single electron in an orbital of an atom.
four shared electrons, or two shared pairs of electrons (or two covalent bonds) between the same...
calculating the mass of a substance, given the mass of a reactant or product.