Need plzz
a microscope that enlarges an object 400 times is said to have a of 400.
i think its magnification.

(a)sharpness

(b)magnification

(c)resolution

(d)enlargement

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution