Copper is a pliable metal with high thermal and electrical conductivity capabilities. It can be identified on the periodic table of elements as Cu and as atomic number 29. Copper and its alloys have been used for thousands of years for various purposes.Continue Reading
Copper is a reddish colored metal that polishes to a bright shine, of which HowStuffWorks says, makes it one of the most useful metals, like iron. While it does not rust, exposure to moisture results in a green patina. Its uses range from jewelry making to plumbing.
Copper is second only to silver in its ability to conduct electricity. This makes it a valuable metal in the electronics industry, where it finds its greatest use.
Zinc alloys with copper are bronze, and tin alloys are brass. In addition, some copper alloys have importance in the biomedical field as they are antimicrobial.
Copper forms compounds with many other elements. These compounds are poisonous to invertebrates and thus used as algaecides and pesticides. While overexposure is sometimes toxic to plants and higher animal life, copper compounds are also essential nutrients. In humans, the liver is 0.00003 percent copper.
While miners often remove copper from the Earth in the form of minerals, it sometime appears in the elemental form. About.com reports, that North America, South America and Africa all have ore deposits. Refineries use smelting, leaching and electrolysis of ores to prepare commercially available copper, some as pure as 99.999+ percent.Learn more about Acids & Bases
Cleaning up spilled acid requires disposing of the material in a plastic or glass container with a sealable lid; a chemical neutralizer should be used if the spilled acid is in liquid form. Safe clean-up requires the use of eye and skin protection, such as goggles, acid-resistant gloves, shoe covers and a lab coat. Ensure all sources of ignition are turned off before beginning the clean-up process.Full Answer >
Baking soda does not lower the temperature of water — instead it raises the temperature slightly, due to the chemical reaction that takes place. Baking soda and water creates an exothermic chemical reaction, which means the binding energy of the chemical bonds has leftover energy that is released to warm the water.Full Answer >
Mixing a base with an acid results in a chemical reaction called neutralization. The result is a perfectly balanced solution of salt and water with a pH of 7 if the acid and base are balanced properly. Depending on the bases and acids used, it can be a dangerous experiment.Full Answer >
According to Anne Helmenstine, Ph.D of About: Chemistry, bases are the chemical opposite of acids. Bases react with acids to form salts and water.Full Answer >