In a molecule of methane, carbon (having four valence electrons) binds to four hydrogen atoms. how many lone pairs of electrons will be represented in the lewis structure of methane?

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.