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A pure substance is a substance that consists solely of the same atoms/molecules.
So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.
A substance that has constant chemical composition and characteristics
Carroll Kertzmann
Wiki User
∙ 14y agomatter that always has exactly the same composition; an element or a compound
Suramya Priyadarshan...
Substances having a constant composition, that is, substances containing only one component with definite properties, are called pure substances
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Is potassium bromide a pure substances?
This is an ionic compound and if it is not mixed in solution or found with other substances, it is pure.
Are naturally occurring materials pure substances. explain?
Answers cannot complete your homework for you, sorry. But you can follow the link, below, to learn more about pure substances vs mixtures.
What makes something a pure substance?
The fact that it can no longer be broken down. An element is pure because of how it cannot be broken further down.
Carbon and hydrogen are examples of pure substances or?
Elements.
Why are solutions mistaken for a pure substances?
Unlike a pure substance, a solution has at least two compounds which are the solute and the solvent.
What is the definition of impure substances?
Substances that are not pure.
What do you think makes compounds pure and mixtures impure?
A compound is, by definition, a single, and hence pure substance (composed of molecules), and a mixture is, also by definition, two or more substances which are mixed together.
Can pure substances be mixtures?
No. This is because a pure substance is a compound (or element) and can only be separated chemically but mixtures can be separated physically. P.S. This answer was written by a 14 year old from Dearborn Michigan
Most modern definition of element?
Elements are those pure substances which are formed by only one kind of atoms.
Are elements pure substances or mixed substances?
pure are you dumb or something
What can pure substances be classified as?
Pure substances are divided into elements and compounds.
How many substances are pure substances?
Practically (exceptions exist) all known substances can be obtained in a pure fom.
Why the compound is referred to as a pure substance?
A compound is still a type of pure substance because of its number of particles. In order to be a pure substance, something needs one particle, and even though a compound is made of multiple elements, it still has a single particle.
Can you convert a mixture to a pure substance?
Only if it is a compound, as a compound is a pure substance that can be broken down into simpler pure substances by chemicalmeans. The decomposition of a substance is a chemical process that breaks down a compound into simpler substances or its constituent elements. So, by definition, the answer is yes. However, if the pure substance was an element, the answer would be no. An element is a pure substance that cannot be broken down into any simpler substances by chemical means. It is a pure substance in which every atom present has the same atomic number.
Are allotropes pure substances?
yes they are pure
What are pure substances solutions homogeneous mixtures colloids or compounds?
Compounds and solutions are pure substances
Are most substances around us pure substances ao mixture?
There are very few pure substances around us. Most substances are mixtures, or compounds.
