Amalgam (chemistry) with copper. A nitric acid solution of salts under investigation is applied to a piece of copper foil, and any mercury ions present will leave spots of silvery-coloured amalgam. Silver ions leave similar spots but are easily washed away, making this a means of distinguishing silver from mercury. The redox reaction involved where mercury oxidizes the copper is: Dental amalgam has been studied and is generally considered to be safe for humans, though the validity of some studies and their conclusions have been questioned. Amalgam (chemistry) An amalgam is an alloy of mercury with another metal, which may be a
The 10% Solution for a Healthy Life to forty percent of caloric intake is from fat. Numerous agencies such as the American Dietetic Association, American Heart Association and U.S. Surgeon General advocate thirty percent of caloric intake from fat. However, Kurzweil says this causes a comparatively slight reduction in atherosclerosis levels. He says that he thinks these agencies use an artificially high figure because they assume that nobody would even attempt to attain a lower level if it were recommended. Kurzweil advocates, based on his findings, only ten percent caloric intake be from fat. Hence, "The 10% Solution". He says that these levels not only prevent Atherosclerosis