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.
An example of a chromium(VI) compound: chromium trioxide. Hexavalent chromium (chromium(VI), Cr(VI)) refers to chemical compounds that contain the element chromium in the +6 oxidation state. Virtually all chromium ore is processed via hexavalent chromium, specifically the salt sodium dichromate.n example of a chromium(VI) compound: chromium trioxide. Hexavalent chromium (chromium(VI), Cr(VI)) refers to chemical compounds that contain the element chromium in the +6 oxidation state. Virtually all chromium ore is processed via hexavalent chromium, specifically the salt sodium dichromate.