Caculate the wavelength of electromagnetic radiation having a frequency of 1.37 x 10^15 hz

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Element before carbon on the periodic table

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.