HELP WiiTH CHEMiiSTRY?

Question

In the reaction:
H2O + H2O <--> H3O+ + OH-

The water is

a- a proton donor, only
b- a proton acceptor, only
c- both a proton donor and a proton acceptor
d- neither a proton donor nor a proton acceptor

thanks in advance =)

Answer 1

[Answer: C]

One H2O molecule will be a proton donor (say, the 1st one), so it becomes OH- in the products.
The other H2O molecule will be a proton acceptor (say, the 2nd one), so it will become a hydronium ion (H3O+) in the products.

Answer 2

Your equation exactly shows how incredible and important water is. It acts BOTH as a base and an acid at the same time. Such property is very critical in biochemical environment as your Human Body.

This makes the correct answer as C.

Answer 3

c - is the correct answer. one water molecule dissociates and donates a proton to another water molecule. The second water molecule is a proton acceptor.