Heavy metals - Wikipedia, the free encyclopedia
There is no widely agreed criterion-based definition of a heavy metal. Different meanings may be attached to the term, depending on the context.
Precipitate - definition of precipitate by The Free Dictionary
Left by their guide, the travelers remained a few minutes in helpless ignorance, afraid even to move along the broken rocks, lest a false step should precipitate them ...
Metal - Wikipedia, the free encyclopedia
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard, opaque, shiny, and has ...
Rader's CHEM4KIDS.COM - Chemistry basics for everyone!
Chem4Kids.com! The site that teaches the basics of chemistry to everyone! Tutorials on matter, atoms, elements, the periodic table, reactions, and biochemistry.
Precipitation - definition of precipitation by The Free ...
Cora, already regretting her precipitation, was obliged to comply, for Magua instantly left the spot, and approached his gluttonous comrades.
Cosmetic Chemistry - Chemistry Encyclopedia - structure ...
Skin-care emulsifiers can be divided into two groups based on ionic charge (See Figure 3). Materials that can dissociate into charged species are considered ...
chemical reaction | Definition, Equations, Examples ...
A process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or ...
Chemistry - 101 Science
Learn more about Chemistry Electronics, Biology, Microscopy (Microscope), Amateur Radio, Photography, Radio Astronomy, Science, Home Learning and much more. www ...
Periodic Table of Elements and Chemistry
Award winning periodic table, with user-friendly element data and facts. Cool, online chemistry videos, dictionary, tools and forum.
WebElements Periodic Table of the Elements
Interactive periodic table. Clicking on an element brings up a list of general properties and data, and information on its discovery, history, uses, geologic ...