Can you design a single pack that can have a dual usage (as a cold and hot pack)
Explain

Calculate the mass percent of hydrogen in methyl acetate

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

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