Is carbon dioxide a pure substance or a mixture
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# Is carbon dioxide a pure substance or a mixture

[From: ] [author: ] [Date: 12-04-16] [Hit: ]
its a mixture ?!-A mixture is when two substances are added together and they dont react. It is possible to have pure carbon dioxide, and it is possoble to have carbon dioxide in a mixture but it itself is a compound not a mixture because it is made of elements that chemically bind together.-It is a mixture.......
How can you tell?

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CO2 is a compound
if you pass this gas through lime-water,it ll produce precipitate of CaCO3(white solid)
if it were a mix. then it would not giv such a reaction.
the density of carbon dioxide is around 1.98 kg/m3, about 1.5 times that of air
so,it is denser than air

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dude air constitutes of nitrogen 78%, oxygen 21%, and 1 % of other gases

so how can we tell which has a greater density
perhaps I didn't understand your question

and carbon dioxide is CO2
that means it is composed of O2 and C (oxygen and carbon)
its a mixture ?!

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A mixture is when two substances are added together and they don't react. It is possible to have pure carbon dioxide, and it is possoble to have carbon dioxide in a mixture but it itself is a compound not a mixture because it is made of elements that chemically bind together.

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It is a mixture.
It is made up of two elements.
Carbon + Oxygen2 = Carbon Dioxide

CO2 = Carbon Dioxide

Carbon Dioxide has more density.
Air density is around 1.3 g/L
CO2 density is around 2 g/L.
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