Answer: A weak acid solution consists of mostly nonionized acid molecules.
Explanation:
Strong electrolytes are those solutions which undergo complete dissociation when dissolved in water. The dissociation of strong electrolytes is given by a right arrow.
Weak electrolytes are those solutions which do not undergo complete dissociation when dissolved in water. The dissociation of weak electrolytes is given by a rightleft arrow.
Weak acids are those substances which dissociate partially to give
ions when dissolved in water. Thus most of molecules remain unionized in solutions.

Strong acids are those substances which dissociate completely to give
ions when dissolved in water.

#1
<span>The rate of diffusion of a gas is inversely proportional to the square root of its molecular weight.
#2
shape, molecular weight. I don't know for sure though
#3
</span>O2, N2, Ar, H2O vapor
2HgO = 2Hg + O₂
n(HgO)=2n(O₂)=2m(O₂)/M(O₂)
m(HgO)=n(HgO)M(HgO)=2m(O₂)M(HgO)/M(O₂)
m(HgO)=2*250.0*216.59/32.00 = 3384.219 g ≈ 3 kg 384 g