PLEASE HELP I WILL MAKE AS BRAINIEST An advantage of using a cell model when
studying cells is that cell models-

E. show cell shape and tiny organelles
found in the cell.

F. show the distance between each
organelle.

G. demonstrate the function of cells.

H. represent the actual size of the

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

the answer is learned

answer: c.

explanation: