How does the electric force between two charged particles change if one
particle's charge is reduced by a factor of 3?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

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.

True or false exosphere is the least dense