An impure substance can be called a mixture. It could be either heterogeneous mixture or homogeneous mixture.
That is an element.
An element.
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Aspirin (ASA) is a compound and is then a pure substance. A mixture is a mix of pure substances while a pure substance can be made up of a single element or compound. Pure Honey and distilled water are both pure substances. Ranch and Italian salad dressings are both mixtures. Aspirin is not an element. Its chemical name is acetylsalicylic acid, abbreviated as ASA.
An impure substance can be called a mixture. It could be either heterogeneous mixture or homogeneous mixture.
The name of the substance in diamonds is carbon.
It means that a substance cannot dissolve in other substance
Oxygen
I assume you mean polytetrafluoroethylene, which is better known as Teflon, DuPont's trademark for the substance.
This substance is called solvent.
That is an element.
a visible suspension in the air of particles of some substance. in other words, a substance in the gaseous state (a gas state) and then distinguished from the liquid or solid state.
Corrosive
Solvent
properties of matter that determine how a substance reacts with other substances
Density is a derived unit: mass divided by volume.