Chemical analysis of vitamin D3 yields the following composition: 84.31% C, 4.16% O, and 11.53 H with a molar mass of 384 g/mol. what are the empirical and molecular formulas for vitamin D3?

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

Amixture with the same composition throughout is!

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