In a schools laboratory, students require 50.0 mL of 2.50 M H2SO4 for an exsperiment but the only available stock solution of the acid has a concentration of 18.0 M what volume off the stock solution would they use to make the required solution?

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.

Definitely 25.3 degrees celsius 

The correct answer is:   [c]:     "it is the minimum amount of material needed to sustain a fission  reaction."