Question

Which equation correctly demonstrates the equilibrium that exists in liquid water?

1. H2O(l) —>H2O(aq)
2 H2O(l) —>2H+ (aq) + 2OH-(aq)
3. H2O(s) —>H20(aq)
4. H2O(l)—> H+(aq) + OH-(aq)

Answer 1

The answer is 4.

Step-by-step explanation:

According to the first sentence of the paragraph an answer have to include H+ and OH- . That leaves 2 and 4. And 2 is not a balanced reaction since there are more moles on the right than the left. That leaves 4 as the only answer that shows the equilibrium that includes the OH and H+ and is balanced.