What are the respective formulas for iron (II) oxide and carbon tetrachloride? What is the difference?

FeO and CCl4

Explanation:

- The formulas are different

- The electronegativities are different

- The molar mass is different

- About everything is different

- Hope that helped! Let me know if you need a further 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