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any process in which a substance reacts with oxygen to produce a significant rise in temperature, and light is given off (burning process).
the theory of acids and bases which defines an acid as a proton donor and a base as a proton...
the separation of a dye into the different colours that make up that dye, as a result of the...
reversible reactions reach equilibrium, provided they occur in a closed container (closed system...
when a nucleus is unstable and emits particles and energy.