Find the volume of C2H2(g) at STP produced when 4.50 mol of H20 react completely with CaC2? CaC2 (s) + 2 H20 (1) - CH2(g) + Ca(OH)2 (aq).

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above

these nuts