Ineed to get my grade up fast someone plz with any of these

1. the outer layer of the eye: G scelra

2. when a light ray bends, or changes direction, when it moves from one material into another: F refraction

3. an optical instrument that makes objects that are far away look closer: K telescope

4. the point where all of the beams of light leaving a lens converge: focal point

5. a term for a medium that transmits nearly all the light rays that hit it: C transparent

6. the distance between any two peaks or any two troughs of a wave: J wavelength

7. a term used to describe a person who cannot see close objects clearly: B

farsighted

8. a term used to describe a person who cannot see faraway objects clearly: M nearsighted

9. a narrow beam of light that travels in a straight line: H light ray

10. a curved, transparent object used to refract light: lens

11. a word used to describe a medium that only allows some of the light rays that hit it to pass through it: E translucent

12. the process of converting light energy into...(can't see the rest)

13. (isn't visible either)

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.