Given the equation representing a system at equilibrium:
n2(g) + 3h2(g)< ==> 2nh3(g) + energywhich changes occur when the temperature of this system is decreased?
(1) the concentration of h2(g) increases and the concentration of n2(g) increases.
(2) the concentration of h2(g) decreases and the concentration of n2(g) increases.
(3) the concentration of h2(g) decreases and the concentration of nh3(g) decreases.
(4) the concentration of h2(g) decreases and the concentration of nh3(g) increases.

N2(g) + 3H2(g)<==>2NH3(g) + energy, the changes that occur when the temperature of this system is decreased is that concentration of H2(g) decreases and the concentration of NH3(g) increases. The answer is number 4. The rest of the choices do not answer the question above.

it is called acid bonding

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates