The gas carbon dioxide is a pure substance. Which of the following is true about
carbon dioxide? (4 points)
о
Carbon and oxygen retain their individual properties.
Carbon and oxygen are chemically bonded in it.
О
It can be separated into carbon and oxygen using physical methods.
о
The proportion of carbon and oxygen is different in different samples of the gas.



Answer :

Final answer:

Carbon dioxide is a compound composed of carbon and oxygen with a chemical formula CO₂, formed by the oxidation of carbon and combustion. The atoms of carbon and oxygen bond in a specific proportion in each molecule.


Explanation:

Carbon dioxide is a compound composed of carbon and oxygen, with a chemical formula CO₂. It is formed by the oxidation of carbon and the combustion of carbon, bonding one atom of carbon with two atoms of oxygen in each molecule.


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