The pure substance is: a) sea water; b) air; c) carbon dioxide; d) granite
| June 22, 2021 | education
Pure substances have a certain constant composition, which can be expressed by a chemical formula.
Mixtures are physical combinations of pure substances that do not have a specific composition. Examples of a mixture are seawater (pure water with salts dissolved in it), air (a mixture of nitrogen, oxygen and other gases), granite (a complex mineral rock).
Among those proposed, only carbon dioxide is the purest substance.
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