How can prove whether it is a pure substance or not ? eg: co2 h2o etc?
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CO²(formula of carbon dioxide) is not a pure substance as it is a compound. When 1 atom of carbon ans 2 atoms of oxygen combines chemically it forms carbon dioxide.
H²O (formula of water) it is not a pure substance as it is a compound. When 2 atoms of Hydrogen and 1 atom of Oxygen combines chemically its forms water.
H²O (formula of water) it is not a pure substance as it is a compound. When 2 atoms of Hydrogen and 1 atom of Oxygen combines chemically its forms water.
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