The vat is made of metal. Why might it matter that the material from which the vat is made is metal? (Think about how the man could have come in contact with the metal)

so it's not breakable

Explanation:

because the of a cat is made of metal so u can't break a dog's tal il and m

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.