What is the mass, in kg, of a 2.12-g piece of lead

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same