ARTICLES

A pure substance is any single type of material that has not been contaminated by another substance. Water is considered a pure substance if the water contains only hydrogen and oxygen.

www.reference.com/science/pure-substance-science-9745a6a9b7b16cb5

Sugar is a pure substance because its composition is homogeneous throughout. Pure substances can be either elements or compounds. Sugar or sucrose is a compound with the chemical formula C12H22O11.

www.reference.com/science/sugar-pure-substance-a4856f7ae1a91fbd

Milk is not a pure substance; it is considered a mixture because it does not occur naturally on its own. It is a mixture that combines mostly water, sugar, fat and proteins.

www.reference.com/science/milk-pure-substance-69a77f3385eb571

SIMILAR ARTICLES

In chemistry, the term "property" is frequently used to describe the attributes of a substance, such as density, oxidation, state of matter, mass, conductivity, color, bonding and many other traits. These properties are ...

www.reference.com/science/properties-science-b66c80070d63fbe

Increasing the surface area of a substance involved in a chemical reaction exposes more of the material to the reactant, thereby speeding up the reaction process. This is why chemists often use powder, filings and other ...

www.reference.com/science/surface-area-affect-rate-reaction-a1f4681e5534851a

According to Dictionary.com, matter has three definitions relating to science: the substance that composes physical objects, general corporeal or physical substance and that which occupies space. Matter has other definit...

www.reference.com/article/science-definition-matter-92fa817fe37e5c63

A phase change in science refers to any substance that changes from one state to another, with possible states being gas, liquid and solid. Substances typically phase change to the closest related state, such as liquid t...

www.reference.com/article/phase-change-science-21ae132e30f28aa