what do you mean by the molecular composition of matter.
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Chemical properties are propertiesthat can be measured or observed only when matter undergoes a change to become an entirely different kind ofmatter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.
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In United States patent law, a composition of matter is one of the four principal categories of things that may be patented. The other three are a process (also termed a method), a machine, and an article of manufacture. In United States patent law, that same terminology has been in use since the first patent act in 1790 (with the exception that processes were formerly termed "arts").
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