How can a flame test identify an unknown element? A. The specific heat capacity of the element is compared with known values.
B. The emission spectrum of the element is compared with known spectra.
C. The ionization energy of the element is compared with known amounts.
D. The element's temperature of combustion is compared with other elements ​

the answer for this question is the option D

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.

b

explanation:

mitosis