Element: Cannot be broken down into simpler substances, Copper wire (Cu), Gold (Au), Aluminum (Al), , N2, Mixture: Can be decomposed by physical means, , Tap Water, Trail mix, Paint, Granite, Air, Potting Soil, Compound: Can only be decomposed by chemical means, Salt (NaCl), , Ice, Rust, Baking Soda (NaHCO₃), C6H12O6, Not Matter: Radiation, Electricity, Light,

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