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Unformatted text preview: Si: silicon element 0: oxygen element Chemical decomposition- breaking apart of a compound into its constituent elements Compound made up of more than one element Molecule specific arrangement of element (H2O) Atoms Macroscopic seen with unaided eye (glass of water) Microscopic need an instrument to view (molecule of H2O) Atoms discovered 1800s john Dalton noticed that elements combine in certain specific ratios H3O heavy water H2O2 hydrogen peroxide Water - $1/gal H3O - $1000/gal...
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