A should be the answer because the more you test an experiment the more data you have to rely on changing the experiment would cause you to have different outcomes making the results different and unreliable so B, C, and D is not going to be the answer Hope this helps
Answer is d. in hetrogeneous you can separate things from each other
Answer:
mass number
Explanation:
yeah mass number is the total of protons and neutrons
for example carbon has 12 proton and 12 neutrons therefore it's mass number is 24
i hope this is what you're looking for
I am going to have to say C. luster if not then B. Cleavage
Atomic radius is the distance from the atom's nucleus to the outer edge of the electron cloud.
