In , materials move from an area of higher concentration to an area of lower concentration through a cell membrane. 1.selective permeability
2.active transport
3.passive transport

1.17 mol hcl and 2.5 mol naoh react according to the equation hcl + naoh -> nacl + h2o . if the limiting reactant is hcl, determine the amount of excess reactant that remains. answer in units of mol.