17. How many grams of Mg(OH)2 are required to make 97.2 grams of Al(OH)3? 3Mg(OH)2 + 2AICI:
=> 3MgCl2 + 2Al(OH)3
18. What is a limiting reagent?
19. What is an excess reagent?
20. CaCN2 + 3H,0 => CaCO3 + 2NH3
a. For the balanced equation shown below, what would be the limiting
reagent if 10.4 grams of CaCN, were reacted with 6.52 grams of H,0?
b. How much of the excess reagent remains?
c. What is the percent yield if the actual amount of NH3 produced is 4.09
grams?