- Is only Cr(VI) in potassium dichromate?

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The total area of a right circular cone with radius 6 and height 8 is ? Are Frayed extension cords,Electric motors,Paper,Welding torches, and Cigarettes heat sources? Two similar pyramids have base edges of 6 and 9. If the total area of the smaller pyramid is 60, then the total area of the larger pyramid ? Experiments on human skin color ? What is question?