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In the manufacture of steel, pure oxygen is blown through molten iron to remove some of the carbon impurity. if the combustion of carbon is efficient, carbon dioxide (density = 1.80 g/l) is produced. incomplete combustion produces the poisonous gas carbon monoxide (density - 1.15 g/l) and should be avoided. if you measure a gas density of 1.77 g/l, what can you conclude?
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