Chemical equilibrium is reach when the concentrations of the product and reactants will no longer change with time. this does not mean that there is no change in concentration, only the net change is zero. the forward rate of reaction is now equal to backward rate of reaction.
7. Large Intestine and chemical digestion
8.stomach
9.capillaries
4.neurons
hopefully this is correct
Fluorine is an element with the highest electronegativity value.