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A way of presenting information about Chemical substance in terms of its constituent parts (atoms and/or ions that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
The simplest examples being Hydrogen: H2 and water: H2O.
See also
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Natural Science / Physics / Chemistry / Chemical substance
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