When 100 grams of HCl reacts with 80 grams of Mg(OH)2 (a total mass of 180 grams), then 50 grams of MgCl2 is produced. How many grams of H2O will also be produced?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.