Determine the number of molecules of C2CI4 contained in 73.1g of C2CI4

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.

+= + + balance the equation on coefficients, ex. 1,1,1

How can the number of core electrons be determined from the periodic table