Answer:
One mole of U238 ( 6.022 X 10^23 atoms) is 238 grams; one mole of U235 is 235 grams. The difference in molecular weight between a mole of U235 and U238 is 3 grams, the secret to enriching uranium.
Explanation:
PH is a measure of the concentration of H+ ions are free in solution. It is defined as pH = -log([H+]).
If you replace pH with y and [H+] with x, you get the function y = log(x). If you analyze how this function changes as you increase x, this will show you how pH varies as X changes. Remember, H+ makes a solution more acidic!
<span>he science that deals with the composition and properties of substances and various elementary forms of matter!</span>
Mass is the amount of matter in an object.
The false statement is C. According to the Heisenburg uncertainty principle, which inspired the modern 'Electron Cloud' model of the atom, it is nearly impossible to predict an electron's path around the atom. The model statement C is referring to is the Neils Bohr model of the atom, which is useful, but inaccurate.