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reactions that raise the temperature of the surroundings by liberating energy
electromagnetic waves, similar to X-rays, but with a much shorter wavelength.
an acid-base reaction in which there is a transfer of protons.
(also called or polypropylene) colourless transparent thermoplastic used where a flexible...
the part of the Earth's hydrosphere that is made of frozen water.
a reaction in which more energy or heat is released than absorbed when the reaction takes...