Of course, the densities are different.
impure substance
No, it is not.
impure because they are made of more than 1 substance
it depends on the substance
There are many factors that can affect the purity of a substance. Substances are considered impure if anything is added to them.
A pure substance is one which contains only that substance and nothing else. An impure substance contains other substances in varying amounts.
An impure substance contain impurities; for example polluted water is an impure substance.
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impure substance
An impure substance contain impurities. The degree of purity depends on the desired application.
No.
No, it is not.
An impure substance can be called a mixture. It could be either heterogeneous mixture or homogeneous mixture.
impure because they are made of more than 1 substance
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it depends on the substance
If a substance in a mixture is preponderant--, if the amount far exceeds the amounts of the other substances in the mixture it is usually called an impure substance. Resource: Separation of the Components of a Mixture Lab -Chemistry