Calculate the density of hydrogen gas at STP.

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.