How many moles of aluminium are needed to react completely with 2.5 mol of fe0

1.67 mol

Explanation:

Data given

Amount of aluminum (Al) = To be find

Amount of  FeO = 2.5 mol

Solution:

First we have to write the balanced reaction of aluminum (Al) with FeO

                        2Al + 3FeO > Al₂O₃ + 3Fe

From the reaction we can predict the reacted amount of  aluminium (Al) with FeO as shown below:

                       3FeO + 2Al    > Al₂O₃ + 3Fe

                      3 mol      2 mol

So 3 mole of FeO react with 2 mole of Al

Now to find moles of aluminium that react completely with 2.5 mol of FeO

we have to apply unity formula

if                        3 mole of FeO ≅ 2 mole of Al

then                   2.5 mole of FeO ≅ x mole of Al

By doing cross multiplication

                           mole of Al = 2 x 2.5 / 3

                           mole of Al = 1.67 mol

i'm assuming that the correct answer is indeed the first one/ "a"..

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates