Element: sodium, calcium, gold, silver, copper, iron, hydrogen, oxygen, helium, potassium, Compound: water, table salt, toothpaste, baking powder, ammonia, nitrous oxide, hydrogen peroxide, sodium bicarbonate, methane, carbon dioxide, Mixture: smog, mud, gasoline, sea water, cement, vinegar, gunpowder, bleach, blood, sea foam,

Element, Compound, or Mixture?

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