What would happen if the concentration of h+ ions were the same on both sides of the membrane when the channel opened?

Diffusion happens against a concentration gradient. Diffusion of a particles occurs when it moves from a region of higher concentration to region on lower concentration. Diffusion occurs as long as there is a difference in concentration. Diffusion stops as soon as there is no concentration gradient.  

There is no diffusion of  H⁺ ions when the channel opens as the concentration of H⁺ ions are the same on both sides of the membrane.

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.