Which statements correctly match the part of the microscope with its function? (choose all of the correct answers) A
Ocular (Eyepiece) Lens: The knob that allows you to change the focus.

B
Objective Lenses: The lenses closest to the specimen.

C
Base: The lens at the top that you look through.

D
Arm: The very bottom of the microscope, used for support.

E
Stage: The flat platform where the slide is placed.

F
Stage clips: Metal clips that hold the slide in place.

27

Explanation:

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

ill try to . no promises tho.

explanation: