A solid
I'm adding a ton of characters down here so they let me post my answer.
I think the correct answer from the choices listed above is option B. The following reaction does not proceed to form a product: H2O + Au---> no reaction because gold has a lower activity than hydrogen and cannot replace it. Hope this answers the question.
Answer:
its a strong nuclear force
Answer : The number of moles of 
and 
at equilibrium is, 1.75 mol and 0.87 mol respectively.
Explanation :
The given chemical reaction is:
Initial mol. 3.67 1.83 0
At eqm. (3.67-2x) (1.83-x) 2x
As we are given:
Number of moles of 
at equilibrium = 1.92
That means,
2x = 1.92
x = 0.96 mol
Number of moles of at equilibrium = (3.67-2x) = [3.67-2(0.96)] = 1.75 mol
Number of moles of at equilibrium = (1.83-x) = (1.83-0.96) = 0.87 mol
Thus, the number of moles of and at equilibrium is, 1.75 mol and 0.87 mol respectively.
