Give two reasons to support the statement that CO2 is a compound and not a
mixture
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1
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It has different chemical and physical properties from the carbon and oxygen the makes it. ii) You can only separate carbon from oxygen in carbon dioxide using a chemical reaction. iv) Carbon and oxygen that make up the carbon dioxide are chemically bonded to form this compound.
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(1) Water is made up of 2 elements in a fixed ratio.
(2) Its constituents can be separated only by chemical or electrochemical reactions.
(3) Its formed by reaction between hydrogen & oxygen with a chemical bond.
(4) Water has totally different properties from 2 elements.
(5) It has a fixed boiling point.
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