2 NaN3 ---> 2 Na + 3 N2 1) Given 8.38 moles of N2, how many moles of NaN3 are needed?
a. 3.45 moles NaN3
b. 5.59 moles NaN3
c. 8.06 moles NaN3
d. 11.98 moles NaN3

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

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