In a laboratory, 178.8 g of water is seperated into hydrogen gas and oxygen gas. the hydrogen gas has a mass of 20.0 g. what us the mass of oxygen gas produced?

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 ?