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.
pure substance, propanone
it s pure liquid.
I thought it was pure substance. But i recently took a Science Test of these subject(i'm also in 8th grade) and it was the same question...EXACTLY! I put down Pure substance as well but appearantly the answer was "All of the Above" which included A.Pure Substance B.Compound C.Element ... so as long as you can prove it was only pure substance( This was for extra credit to get points back on the test for my teacher) You got the points. In my opinion a Pure Substance is the substance in which there is only one type of particle. I hoped this helped :)
Mixture, because it is mixed with all sorts of chemicals, such as smog, and or pollen.Mixture is NOT a pure substance, because to be a pure substance, it can't be mixed with anything.
oxygen is an example of a pure substance because a pure substance is made up of one kind of matter and it cannot be broken down into smaller parts.
If this compound is refined can be classified as a pure substance.
Water is a compound, so it is a pure substance.
A mixture would not be classified as a pure substance because it contains more than one type of substance, which are not chemically bonded together. Mixtures can be further classified as homogeneous (uniform composition) or heterogeneous (non-uniform composition).
Yes, all homogeneous matter can be classified as a pure substance because it has a uniform composition throughout. This means that all samples of the matter have the same properties and composition, making it a pure substance.
Liquid bromine is classified as a pure substance. It consists solely of bromine atoms and does not contain any other substances mixed in, making it a homogeneous substance.
Silver would be classified as an element, which is a type of pure substance.
Yes, purified water is a pure substance because it consists of only water molecules with impurities removed through processes like distillation or filtration. This makes it a homogeneous mixture with a consistent composition.
A mixture requires a least two components. a pure substance must have only one component.
Fungus is a living organism, which is not classified as either a pure substance or a mixture. It is made up of a collection of cells that work together to form a complex structure.
Generally not. While gold itself is a pure substance, pure gold is rarely used in jewelry because it is too soft.
Mixtures are made up of two or more different substances physically combined, so they do not have a fixed composition or properties. In contrast, pure substances are made up of only one type of substance with a definite composition and characteristic properties. This distinction means that mixtures cannot be classified as pure substances.
Copper is a metallic element with the symbol Cu (29) and in its pure form contains only atoms of Copper. It is a pure substance. In addition, Copper is a soft metal and can be mixed with other metals to create alloys.