A 22.48 gram sample of chromium is heated in the presence of excess chlorine. A metal chloride is formed with a mass of 53.14 g. Determine the empirical formula of the metal chloride. (Enter the elements in the order Cr, CI )

empirical formula:

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

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

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures