Innumerable examples occur. From apple juice to the very elements themselves. Fruit juice is a compound of many materials.
Many elements have isotopes - Tin has almost 30 isotopes - most non natural. Sulfur has four natural ones, and even hydrogen has a couple of natural isotopes.
A pure substance and a homogeneous mixture are two different things. A pure substance is anything that is completely by itself. (An element, pretty much) A homogeneous mixture is a mixture of 2+ compounds that you can not differentiate the separate substances in the product. Such as soda, it is all one color and one texture, but there are many compounds in it.
A lead weight is made from the metallic element Lead (symbol Pb) so it is simply a pure element, it is not a mixture or a compound.
there is to types of change to a substance chemical and physical in a physical change the result is a mixture also most times you can change your end result into what you started with e.g.freeze-melt evaporate-condesate
Matter can be classified as a pure substance or a mixture. Pure substances are made of only one type of atom or molecule, while mixtures contain two or more different substances physically combined. Matter also has properties like mass, volume, and density, and can exist in different states - solid, liquid, gas, or plasma - depending on the arrangement of its particles.
False. In a physical change, the substance remains the same even though there may be a change in appearance or state. The molecules of the substance do not rearrange themselves to form a new substance.
A mixture that contains only one substance is called a homogenous mixture, such as salt dissolved in water. In this case, even though it appears to be a mixture, it is still only one substance present.
A mixture is multiple things mixed together - hence the name. A product with only one kind of substance is a "pure substance."
Simple answer: it is a pure substance Non-Simple answer: Diamonds contain impurities in their lattice structure that are other elements, so technically it is slightly a mixture, but only if you get really picky about it.
Homogeneous mixtures contain only one substance, like Coke.Heterogeneous mixtures contain two or more substances, like salad dressing.
Hydrogen gas is a pure substance because it consists of only one type of atom, which is hydrogen. It is not a mixture because it does not contain different substances mixed together.
A mixture contain two or more substances (compounds).
A pure substance is made out of only one kind of element (for example, gold is a pure substance). A mixture is made out of two or more different substances and is only combined by physical means. A pure substance cannot be broken down into a simpler substance. A mixture can be separated into its component parts.
No, Iron is a homogeneous mixture as long as the iron is pure
No. Helium is an element, which makes it a pure substance.
A heterogeneous mixture contains multiple chemical substances combined in a non-uniform way, whereas a pure substance contains molecules with only one chemical identity. For example, salt is a pure substance, whereas a mixture of salt an rocks is a heterogeneous mixture.
A pure substance by definition cannot be a mixture. Pure in chemistry means only one substance is present.
If a substance can be physically separated into its components, it is a mixture, not a pure substance. A pure substance consists of only one type of particle and cannot be separated into other substances by physical means.