Some photosynthetic prokaryotes use hydrogen sulfide (H2S) instead of water as their photosynthetic hydrogen donor. How does this change the ultimate products of photosynthesis? Assume all other photosynthetic components are like those in plants.

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.