Quote:
Originally Posted by vintagetoppsguy
My definition of a chemical is a substance created by chemistry (changes in the composition of molecules). There are chemicals in water - some added intentionally (chlorine), some naturally (iron, calcium), some just seep into the water supply (pesticides), but water itself is not a chemical.
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So chlorine, iron, and calcium are created by chemistry? These chemicals are found in nature just as water is. If you are going to make up your own definitions at least make them consistent.