5. Which sample contains the least number of atoms? A. 2 mol of NaCl
B. 2 mol of NH3
C. 1 mol of CH3COOH
D. 1 mol of H20

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?