The water molecule is a polar molecule which would mean that there is an uneven distribution of charges. Each molecule of water has partial positive and partial negative end. The partial positive charges is found in the H atoms while the partial negative is at the O atom. This is due to the the unequal sharing of the electrons.
<span><span>4.2×1022</span>NA</span><span> N_{A} is the avagadro number</span>
There arranged in energy shells each shell has a limit to how many electrons they can carry this varies with element.
45 000 000 000 nanometers
HCl = 1 + 35.5 => 36.5 g/mol
hope this helps!
