What is ductility in a solid?
o
a. the ability to insulate against heat
o
b. the ability to be flattened into thin sheets
o
c. the ability to conduct electricity
o
d. the ability to stretch without breaking

D

Explanation:

REASONS WHY THE REST ARE WRONG

1. For A, that's only in when non-conductivity of solid is required.

2. For B, that's when malleability of the solid is required.

3. For C, that's when the conductivity of solid is required

4. D is talking about the ductility of solids

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.