(Encyclopedia) turpentine, yellow to brown semifluid oleoresin exuded from the sapwood of pines, firs, and other conifers. It is made up of two principal components, an essential oil and a type of…
ABUNDANCE OF WATERDRINKING WATERHYDROGEN BONDFIND OUT MOREThe simple combination of two hydrogen atoms and one oxygen atom creates a water molecule (H2O). Water is the most common compound on…
Separating MixturesChemistryElements, Compounds, and MixturesPure SubstancesShake It Up: MixturesColloids: Somewhere in BetweenSeparating Mixtures One of the most important things that chemists do…
(Encyclopedia) Rostenkowski, Dan (Daniel David Rostenkowski)Rostenkowski, Danrŏsˌtənkouˈskē [key], 1928–2010, U.S. congressman, b. Chicago, grad. Loyola Univ. (1951). A Democrat, he was first elected…
(Encyclopedia) pyridinepyridinepĭrˈĭdēn [key] or azineazineăzˈēn [key], C5H5N, colorless, flammable, toxic liquid with a putrid odor. It melts at −42℃ and boils at 115.5℃. Chemically, it is a…
Writing Complete EquationsChemistryChemical EquationsLet's Make Chili!Getting Our IngredientsHow Much of Each Ingredient Do We Need?Writing Complete EquationsAdding Variety to Our MenuPredicting…
(Encyclopedia) methanol,&sp;methyl alcohol, or wood alcohol, CH3OH, a colorless, flammable liquid that is miscible with water in all proportions. Methanol is a monohydric alcohol. It melts at −97…
(Encyclopedia) dry cleaning, process of cleaning fabrics without water. Special solvents and soaps are used so as not to harm fabrics and dyes that will not withstand the effects of ordinary soap and…
(Encyclopedia) phospholipidphospholipidfŏsˌfōlĭpˈĭd [key], lipid that in its simplest form is composed of glycerol bonded to two fatty acids and a phosphate group. The resulting compound called…
