We have the equation to prepare a sandwich. The equation is balanced since the number of species in the reactants is the same as in the products. We see to make a sandwich (H2CTP5B2) we need 2 slices of ham (H) and 5 pickles (P). The ratio P to H is 5/2. If we apply this ratio we can find the pickles needed to prepare a complete sandwinch. We apply the following procedure.
We will need 35 pickles to make a sandwich with all the ham. The answer will be the option a. 35