What was the outcome of brown v board of education? a. separate but equal is unconstitutional c. students should have the option of leaving their community b. separate but equal is acceptable d. the court case is not a supreme court case

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal