Carbon and oxygen can combine to form carbon dioxide (CO2). What is the molar mass of carbon dioxide? (atomic masses: C = 12.01 g/mol and O = 15.99 g/mol)

28.01 g/mol

44.01 g/mol

56.02 g/mol

88.02 g/mol

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

How many moles of gas are present if p=11 atm, v=12l, t=185k?

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion