0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What distinguishes a mixture form an impure 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
Is sulphur a pure or impure substance?
Sulphur can be pure or impure depending on it's source.For that matter no substance can be classified as pure or impure just by it's name.It depends on what chemists call ASSAY.Whenever you buy a chemical ask for ASSAY,you will know it's purity.Sometimes , even if the purity is not 100%,the chemical can be used if the impurity does not affect the product.Even the so called pure metals will have some amount of impurity
Is cyclohexone a pure substance?
Cyclohexane (or cyclohexanone, if that is what you meant) is usually found as a pure substance, and is produced industrially as such. It consists of a single molecule. However, cyclohexane can be impure if it is tainted or something is added to it.
How is the melting of an impure compound expected to change with recrystallization?
The melting point of an impure compound will become closer to that of the actual melting point of the pure substance with recrystallization of your mixture.
What happens to the melting point of urea and cinnamic acid when mixed?
The melting point will be reduced because an impure substance is not held together as strongly as a pure substance therefore it takes less energy to break the bonds or attractive forces holding the impure substance together.
Is a suspension a pure substance?
impure substance
Is a compound impure or pure?
it depends on the substance
Are a mixture pure or impure?
impure because they are made of more than 1 substance
What is meant by a substance and a pure substance?
A substance might be pure with a single compound or impure with impurities along with principal compounds.
Is ice a pure mixture?
If there is no salt or substance that makes it impure it is a pure mixture
Is flour a pure or impure mixture?
Yes Baking Powder Is A Pure Substance.
What distinguishes a mixture form an impure 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
What advantage does an impure mixture have over pure substance?
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.
What is the difference between substance and a pure substance?
A pure substance is one which contains only that substance and nothing else. An impure substance contains other substances in varying amounts.
How do you distinguish a pure substance?
A pure substance will melt over a very narrowtemperature range.An impure substance will melt over a broader, lower temperature range.
Is aerosol a pure substance homogeneous or heterogeneous mixture?
An aerosol may be pure or an impure material, homogeneous or not.
Difference between pure and impure substance from density?
Of course, the densities are different.
