Chemistry, 26.11.2019 06:31 destinee8863
Abubble of air is rising up through the ocean. when it is at a depth of 20.0 m below the surface, where the temperature is 5.00°c, its volume is 0.90 cm3. what is the bubble's volume (in cm3) just before it hits the ocean surface, where the temperature is 20.0°c? assume the average density of sea water is 1,025 kg/m3.
Answers: 2
Chemistry, 22.06.2019 15:20
An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.
Answers: 1
Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
Answers: 2
Chemistry, 22.06.2019 20:00
What happens to the temperature of a substance when the average kinetic energy of its particles increases?
Answers: 3
Chemistry, 23.06.2019 00:20
Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.
Answers: 1
Abubble of air is rising up through the ocean. when it is at a depth of 20.0 m below the surface, wh...
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