SAlT, PURE WATER, IRON FILINGS
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Salt water or sugar water can appear to be pure substances because the dissolved solutes may be invisible. In gunpowder (black powder), the compounds potassium nitrate, sulfur, and carbon are all...
Yes. Anything that has a formula is a pure substance. The formula for water is H2O, therefore, it is a pure substance.
substance (material from which things are made) that has the attribute pure (unmixed with other substances)