Arock sinks in water, but suppose a rock was placed in a pool of mercury. mercury is a liquid metal with a density of 13.5 g/cm cubed. the density of rock is 2.6 g/cm cubed. will the rock sink or not? explain how you got your answer.

Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature.