How many valence electrons are present in an atom that has a ground state electron configuration of 2-8-5?

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

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