A student measures the mass and volume of a sample of aluminum at room temperature, and calculates the density of Aluminum to be 2.85 grams per cubic centimeter. Based on Table S, what is the percent error for the student’s calculated density of Aluminum?

Which best describes why nh4+ can form an ionic bond with cl-?

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.

What 3 categories are elements divided