Meredith notices that different plant fertilizers are made up of different chemicals. some fertilizers are high in nitrogen. other fertilizers are high in phosphorus. meredith hypothesizes that nitrogen-rich fertilizers are best to grow fruit crops such as strawberries. when she is designing her experiment, what should be her variable?

clouds form

solid ice forms on leaves.

water droplets form on grass.

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.

answeridentity;