4Fe + 3O2 → 2Fe2O3
i believe this is the answer
Lol I don’t have snap. But I’m only texting this cause this app wants me to answer some questions. But! Lol have a great day/night
the molar mass of the element is 81.36 g/mol
<u><em>calculation</em></u>
step 1 : multiply each %abundance of the isotope by its mass number
that is 79.95 x 29.9 =2391
81.95 x 70.1 = 5745
Step 2: add them together
2390.5 + 5744.7 =8136
Step 3: divide by 100
= 8136/100 = 81.36 g/mol