Mercury has a density of 13.6 g cm3, what is the mass of a sample of mercury in a cylindrical shaped vial of radius 5cm and height 12 cm

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action