Hc]a laboratory experiment requires 2.0 l of a 1.5 m solution of hydrochloric acid (hcl), but the only available hcl is a 12.0 m stock solution. how could you prepare the solution needed for the lab experiment? show all the work used to find your answer

Which of the following did you identify correctly

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 .