Answer to Question #56532 in General Chemistry for Allison

Question

One reaction that produces hydrogen gas can be represented by the following unbalanced chemical equations:
Mg(s) + HCl(aq) --> MgCl2(aq) + H2(g)
a. what mass of HCl is consumed by the reaction of 2.50 moles of magnesium?
b. What mass of each product is produced in part a?

I do not know where to even start to figure this problem out, except balancing the formula. I did some math and I have an answer but I am not sure if it is right or not.