Chromium metal can be produced from the high-temperature reaction of Cr2O3 [chromium(III) oxide] with silicon or aluminum by each of the following reactions:Cr2O3(s) + 2 Al(ℓ) […]
Earth scientists use maps are used for a variety of different functions: are used to show the shape and elevation of landforms. Geologic maps are used […]
consider a concave mirror with a focal length of 13.72cm, and the object distance is 6.86cm, i calculated and found the image distance to be -13.72cm […]