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a process that takes energy into the system. This increases the internal energy of the system (increases the enthalpy of the system).
a group of organic compounds obtained by oxidation of alcohols.
a pair of electrons shared between two atoms in a covalent bond.
forces of attraction between non-polar molecules (H2; CH4 ) or the atoms of a monatomic gas...
substances that are able to swap ions.
a clear glassy material possessing good heat and electrical insulating properties.