Complete combustion of 5.90 g of a hydrocarbon produced 19.2 g of co2 and 5.89 g of h2o. what is the empirical formula for the hydrocarbon?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone, due to its high light availability and warm water temperature