According to one acid-base theory, water acts as an acid when an h2o molecule
(1) accepts an h+ (3) accepts an h-
(2) donates an h+ (4) donates an h-

The answer is (2) donates an H+. First, the hydrogen ion is usually positive. Then, the theory means that acid donates an H+ and base donates OH-. So because water molecule can donates an H+, it is an acid.

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic

Electrons are emitted