How to do this question of balancing chemical equations?

What happens when an acid dissolves?

Draw two cyclic constitutional isomers of cis-1

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?