How To Clean-up An Oil Spill You will be using a small container, water, and vegetable oil. The water represents an ocean (orbay, sound, even a lake) and the vegetable oil is the oil that is spilled into the water.ow To Clean-up An Oil Spill method is that dispersants often harm marine life and the dispersed oil remains in the body ofwater where it is toxic to marine life.Physical7.
Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.aturally occurring chromium is composed of three stable isotopes; 52 Cr, 53 Cr and 54 Cr with 52 Cr being the most abundant (83.789% natural abundance). 19 radioisotopes have been characterized with the most stable being 50 Cr with a half-life of (more than) 1.8 Ã 10 years, and 51 Cr with a half-life of 27.7 days.
Chromium around us. Chromium is an essential trace element and has a role in glucose metabolism. It seems to have an effect in the action of insulin. In anything other than trace amounts, chromium compounds should be regarded as highly toxic.Chromium is not found as the free metal in nature.The most important ore is chromite (FeCr 2 O 4) and this is found in Turkey, USA, South Africa, Albania, Finland, Iran, Madagascar, Russia, Southern Rhodesia, Transvaal, Cuba, Brazil, Japan, India, Pakistan, and the Philippines.hromium around us. Chromium is an essential trace element and has a role in glucose metabolism. It seems to have an effect in the action of insulin. In anything other than trace amounts, chromium compounds should be regarded as highly toxic. Chromium is not found as the free metal in nature.