Angela uses a force of 25N to lift her grocery bag while doing 50J of work. How far did she lift the grocery bags?

An experimental procedure requires a 10 ml of acid to be dissolved

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

What does a numerical subscript following an element in a chemical formula mean?