Soil is considered a mixture, as it is a composition in which each of the components retains its own properties. Mixtures have no fixed chemical structure or composition, and each of the atoms or molecules can be physica... More »

Sugar is a compound. Sugar, or sucrose, is composed of carbon, hydrogen and oxygen elements, and it has the chemical formula C12H22O11. More »

Sand is a heterogeneous mixture because it is a granular substance composed of small particles of rocks or minerals. A heterogeneous mixture contains components that are not uniform throughout the mixture. More »

A homogeneous mixture is one that has a uniform composition and the same properties throughout the mixture. This is different than a homogeneous substance, which means that there is only one kind of substance present. A ... More » Science Chemistry

Strictly speaking, no element is named for a cleaning compound. Boron, however, is derived from the Arabic and Persian words for borax, the compound in which it's often found. Borax is a common component in many abrasive... More » Science Chemistry

An alkali is a basic ionic compound of an alkali earth metal or alkali metal element. Alkalies are most noted for their ability to neutralize or balance acidity. An alkali solution turns a red litmus paper blue. Caustic ... More »

An element or compound that enters into a chemical reaction is called a reagent, while the elements or compounds that result from a chemical reaction are called products. Reagents can be further defined as reactants, cat... More »