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Unformatted text preview: Highlight or place an X in the boxes that apply to each pure substance listed in the left hand column. Two boxes should be selected for each item. Element Compound Atom Molecule Hydrogen gas (H 2 ) x X Carbon dioxide (CO 2 ) x X Steel wool (Fe) x X Chlorine gas (Cl 2 ) x X Propane gas (C 3 H 8 ) x X Water (H 2 O) x X Gold (Au) x X Diamond (C) x x SNC1D Atoms & Elements...
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