If 72.0 grams of aluminum are reacted with 252 grams of hydrochloric acid, what is the mass of the excess reactant leftover after the reaction has reached completion? 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)

a - 9.84 g
b - 55.3g
c - 72.4g
d - 180g

a chemical reaction

explanation:

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

level 4 to level 2 : ))

50.23 i believe is correct but don't quote me on that.