Which precipitate does the following reaction form?
Ba(NO3)2(aq) + Na2SO4(aq) → 2 NaNO3(aq)
+ BaSO4(s),
1) nitrogen
2) barium sulfate
3) barium nitrate
4) soluble salt

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.