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Chemical pollution happens when certain compounds are improperly disposed of. This can affect the environment by disrupting the processes of the ecosystem. Chemical pollution happens when certain compounds are improperly disposed of. This can affect the environment by disrupting the processes of the ecosystem.
Best Answer: It would depend on your definition of a chemical. A chemical is: a substance produced by or used in a chemical process.. And, water is a chemical because it is be used in chemical reactions such as neutralization, redox, etc. I believe what you're asking though is if water is a chemical substance: a material with a definite chemical composition.. Water is also a chemical composition because of its electron configuration in its valence shell which defines its chemical properties. Source(s): Definition of Chemical: http://dictionary.reference.com/browse/c... Definition of Chemical Substance: http://en.wikipedia.org/wiki/Chemical.