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the industrial preparation of ammonia (NH3).
when a nucleus is unstable and emits particles and energy.
a reaction that takes place automatically by itself, without requiring extra stimulation.
coal that is heated in the absence of air to about 1 000 °C to remove volatile substances.
an electron pair in which each atom provides one electron for the bonding pair.
a chemical reaction where two molecules combine to form one single molecule. The elimination of...