Energy can be described in many ways. from the list below, what is the best defenition of energy? a. melting, freezing, or evaporating b. anything that brings about change c. the ability to create a new substance d. the ability to do work

The best definition of energy is D. the ability to do work.

The others are examples of energy changes, but they are not definitions.

jdjxnbfb

explanation:

jjfnc fdnxnxx

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.