Okay first it has 1. 8Al+3Fe(lower 3)O(lower4) -> 4 Al(lower 2)O(lower3 ) + 9 Fe Okay, I get that you have to balance it but under it, it says Do a problem for this chemical equation that involves starting with amount of a compound in moles And calculating the mass of another compound in grams,using that chemical equation. That part has me like whaaatttt. And I have two more problems just like that. And sorry with the first equation part I don't know the correct terms or symbols to use. Help please.