Explain, in terms of charge distribution, why a molecule of carbon tetrachloride is a nonpolar molecule.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

How many valence electrons are in atom of radon?