Chemical Reactions / Essays / Chemistry / ID: 160484

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ID number:160484

Author: Anonymous author (3)

Evaluation:

Published: 20.11.2004.

Language: English

Level: Secondary school

Literature: n/a

References: Not used

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Extract

Chemical reactions take part in everyday life. Everything from decomposition to chemical reactions in our body, they all take place without our help. In a chemical reaction, some bonds are broken in the reactants in order to form bonds in the products, and atoms are rearranged. Chemical reactions always involve a change in energy. Energy is neither created nor destroyed; it is absorbed or released in chemical reactions. The reactions can be described as endothermic (energy is absorbed) or exothermic (energy is released). …

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Chemistry

Chemical Reactions