Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? A)Decreasing pressure
B)Decreasing surface area
C)Increasing rate of stirring
D)Increasing temperature

m=9

step-by-step explanation:

7m+8=71 subtract   8 from 71 which is 63 than divide it by 7m   equal 9.

                             

It could possibly be beneficial if the experiment is successful.

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

It will be b hydrogen