This depends on the specific application of a material.
If there is no salt or substance that makes it impure it is a pure mixture
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
Yes Baking Powder Is A Pure Substance.
impure because they are made of more than 1 substance
yes water is mixture of many impure substances and bacteria.even pure water has some bacterias.
Generally an impure material is cheaper than a pure material; the word advantage is not so adequate here - can use pure or impure, this depends on the specific applications.
No, a suspension is not a pure substance. It is a mixture of particles dispersed in a liquid, where the particles are not fully dissolved and can be seen with the naked eye.
It depends on what you're trying to accomplish. Helium is a pure substance. Corn flakes are a mixture. If you're trying to blow up balloons, the pure substance has one huge advantage over the mixture: balloons filled with corn flakes are no fun. But if it's 6 am and you want to eat breakfast, you'd better stick to the mixture.
mixture
pure substance?
Any processed food is made of impure elements, solutions, colloids, suspensions, and compounds.
No, it is a mixture; rarely a drug is a pure substance.