Answer:
194.1903
Explanation:
that is for one mole of K2Cro4
Least dense means the one that is at the top. Wood floats on top of water, so wood would be the least dense. Water has a density of 1 and the others would all sink, so they're more dense. The answer is wood
I believe it is C, but I can't guarantee it.
Visible and infrared light do not cause sunburn and they are not known to directly be a skin cancer risk.