The reaction of 44.1 g of Cr2O3 with excess Al produced 25.6 g of Cr. What is the percent yield for this reaction?2Al + Cr2O3 → Al2O3 + 2Cr

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.