The volume of solution in a test tube is measured to be 0.0067 liter. Which digits in Calculate the molar mass of the compound sulfur trioxide (SO3). Use the periodic table to obtain the atomic weight of the elements. Express your answer to the correct number of significant figurethe measurement are significant figures?

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.