Anything that can be seen or touched, except light and electricity, is a chemical; all substances are either pure chemicals or combinations of pure chemicals; all matter is composed of chemicals, i.e. water, milk, and fingernails are all chemicals.
Anything that can be seen or touched, except light and electricity, is a chemical; all substances are either pure chemicals or combinations of pure chemicals; all matter is composed of chemicals, i.e. water, milk, and fingernails are all chemicals.
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