a welding torch requires 4122.8L of ethylene gas at 0.64 atm what will be the pressure of the gas if ethylene is supplied by a 51.6 L tank

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

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b. colder climates near the equator c. large waves on the cost of europe d. warm climates in northern europe