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.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.