A sample of a gas is at STP. As the pressure decreases and the
temperature increases, the volume of the gas (1) decreases
(2) increases (3) remains the same

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.

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains