Fe2O3 + 3(CO) --> 3(CO2) + 2Fe 1. Calculate the mass in grams of CO2 produced when 1.08 moles of Fe2O3 reacts.
2. Calculate the mass in grams of CO required to produce 1.34 moles of Fe.
3. Calculate the number of moles of CO required to produce 0.45 grams of Fe.
4. Calculate the number of moles of Fe2O3 required to produce 3.07 grams of CO.
5. Calculate the number of moles of CO required to react with 6.01 g of Fe2O3.

so you see if you take the triangularity of the moon divided by a circle you will get the 5 1/2 and add that to 1+1 you get ur answer.

answer; protein;

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.