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No substance always has the same composition and properties, unless that substance is only considered in one of the various phases of matter. An element would be the logical choice, but many compounds and even solutions are the same no matter what (of course dependent on phase).
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∙ 14y ago
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What is the homogeneous material with with a variable composition?
No. A pure substances has a definite and constant composition.
What is the substance with a constant composition that can be broken down into elements?
physical molecules with membranes
In science what is substance?
A SUBSTANCE is a material that has constant composition, regardless of its source, also said to be pure. This is opposed to an impure sample one with variable composition which would be called a MIXTURE. subutance
Are object substances?
A Substance is a material that has constant composition, regardless of its source, also said to be pure.A substance is somethingRead more: What_is_a_substance_in_science
How is water a pure substance?
Pure substances fall into two categories: elements or compounds, both of which have constant compositions. H2O is a compound, and therefore a pure substance because its composition does not vary.
What is a substance with constant consumption?
What is a substance with constant composition
What matter has a definite or constant composition?
Substance
What is the similarties between mixture and substance?
A substance has constant and definitive composition Mixture is combinations of pure substances that have no constant and definitive composition: homogeneous mixture, heterogeneous mixture
What is a pure substance classified as?
A pure substance is classified by having a definite and constant composition. The substance can be either an element or a compound, but what makes the substance pure, is that it does not vary.
What is the homogeneous material with with a variable composition?
No. A pure substances has a definite and constant composition.
What is the substance with a constant composition that can be broken down into elements?
physical molecules with membranes
In science what is substance?
A SUBSTANCE is a material that has constant composition, regardless of its source, also said to be pure. This is opposed to an impure sample one with variable composition which would be called a MIXTURE. subutance
Pure substance definition?
A pure substance:cannot be separated into 2 or more substances by physical or mechanical meansis homogeneous, ie, has uniform composition throughout the whole sampleits properties are constant throughout the whole sampleits properties do not depend on how it is prepared or purifiedhas constant chemical composition
What is the definition of pure substances?
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
Are object substances?
A Substance is a material that has constant composition, regardless of its source, also said to be pure.A substance is somethingRead more: What_is_a_substance_in_science
Is a helium a heterogeneous?
No, helium is a pure substance and an element to be more specific. It has a constant composition making it a pure substance and it is homoatomic (has only one type of atom) which makes it an element.
How is the composition of a substance different from the composition of a mixture?
A substance has a specific chemical composition while mixtures contain more than one substance.
