Question

A scientist 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

Answer 1

I would say the final mass of the metal

Answer 2

thanks

Answer 3

NP