An ebonite (very hard, black rubber) rod is rubbed with the four different substances below. choose the one that is most likely to produce the largest static charge by friction. an ebonite (very hard, black rubber) rod is rubbed with the four different substances below. choose the one that is most likely to produce the largest static charge by friction. a) fur b) paper c) silk d) wax

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

Which states of matter have particles that move independently of one another with very little attraction?

How many valence electrons are in atom of radon?