please will some one help me with this problems

Chemistry
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what is chemistry

Nov 29th, 2014

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Nov 29th, 2014

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Nov 29th, 2014
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Nov 29th, 2014
Dec 8th, 2016
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