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dealing with quantities as well as the nature of the substances under consideration.
a process whereby molecules combine automatically to form new ions as in the case of water.
all matter is made of particles (molecules or atoms) that are in constant motion.
a battery consists of two or more galvanic cells connected to each other electrically.
a substance that improves the efficiency of a catalyst is called a promoter.
the part of the Earth's hydrosphere that is made of frozen water.