what do we mean when we say atmospheric carbon dioxide can be "sequestered" by all vegetation, and in large volumes by trees?

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6