Se mezclan 200g de una disolucion de Sulfato De sodio (Na2SO4) al 10% m/m y d=1.09 g/ml con 120 ml de otra disolucion de la misma sal al 28% m/m y d=1.23 g/ml. Determina: 1.)concentracion m/m
2.)concentracion m/v de la disolucion final
3.)densidad de la disolucion final .

Thermohaline circulation and gyres

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

Replicate prove reliability and validity