i haver tried doing my science homework and it is really hard it is to do with maximum mass and i cant find thee equations for it anywhere and i was wondering if anyone could help me by giving me the equation so i could perhaps try to attempt it myself. Not even my dad knows how to do it, so thanks if you can help :)

Well, you need to find out which of the two reactants are the limiting reactant. By doing a simple stoichiometry problem, you can find out the mass of the product, and whichever product is smaller from both of the reactants will be your "maximum mass."

thank you :)