Decide if these sentences are true or false and rewrite the false sentences correctly. Be careful because each mistake discounts a right answer:
a) The density of a solution is equal to the mass of the solute divided by the volume of the solvent.
b) The interaction between unlike charges is a repulsion force.
c) Distillation is the method to separate miscible liquids.
d) Decantation is the correct method to separate a mix of alcohol and water.
Indica el número de moles presentes en:
a) 450 g de
.
b) 15 L de
en condiciones normales de P y T.
c)
moléculas de
.
EjerciciosFyQ