Calculate the equilibrium concentration of N2 for the following reaction if the equilibrium constant, Keq, is 0.055, the concentration of H2 is 1.2 M, and the
concentration of NH3 is 0.225 M at equilibrium.

N2 (g) + 3H2(g) 2NH3 (g)

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

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

the answer is a for sure mark brainliest i had got this right on usatestprep