4) An unlabeled laboratory solution is found to contain an OH ion concentration of 6.7 x 10-6 M. What is the H+ concentration in the solution?
A) 6.7 x 10-20 M
B) 6.7 x 108 M.
C) 1.49 x 10-20 M
D) 1.49 x 10-9 M

i do not know

explanation:

yes definetly because you are using energy

the answer is d : ) have a good da

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.