Explain why 0.76 * 103 would not be considered a correct answer for a scientific notation problem? what should be done to fix this? give the correct answer.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

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