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From Wiktionary under the GNU Free Documentation License. In chemistry, a chemical substance is a material with a specific chemical composition. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Some typical chemical substances are diamond, gold, salt (sodium chloride) and sugar (sucrose). Generally, chemical substances exist as a solid, liquid, gas, or plasma and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another. Forms of energy, such as light and heat, are not considered to be matter, and thus they are not "substances" in this regard. From Wikipedia under the
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Q. I was looking up at home chemical peels and there are all sorts of different acids to choose from like glycolic, lactic, and salicylic. I will be doing the peels on my lower back where my acne scars are. I don't care about pain or discomfort I just want whatever will work best and fastest. Asked by kuf99ver3 - Wed Oct 15 13:23:28 2008 - - 3 Answers - 0 Comments A. The results of TCA peel are frequently less dramatic than and not as long lasting as those of a phenol peel. In fact, more than one TCA peel may be desirable to realize the most wanted result. The improvement from a TCA peel is usually shorter than with a phenol peel. Phenol is the strongest of the chemical liquid and makes a profound peel. It is used mostly to take care of patients with coarse facial wrinkles, areas of blemished or damaged skin caused by sun exposure or precancerous growths. Because phenol sometimes lightens the treated areas, your skin pigmentation may be a determining factor as to whether or not this is an appropriate treatment for you. I suggest you look for more information on www.chemicalpeel.org Answered by lmarida79 - Sat Oct 18 16:59:16 2008 From Yahoo Answer Search: "chemical"  youtube.com Mon, 12 Jun 2006 01:59:50 PDT Music video, feat Tim Burgess (the Charlatans). youtube.com.  youtube.com Wed, 28 Oct 2009 16:40:49 PDT © 2009 WMG mychemicalromance.com Official Video for "Desolation Row" by My Chemical Romance from the watchmen original motion ... youtube.com.  youtube.com Mon, 29 Mar 2010 12:33:57 PDT my chemical romance im not okay. youtube.com. From Google Video Search: "chemical" |
