Chemistry, 25.09.2019 19:30 bobbycisar1205
Asample of helium has a volume of 5 liters and a pressure of 699 mmhg. if the final volume is 5.7 liters, its final temperature 303 k, and the final pressure 800 mmhg, what was the initial temperature of helium?
Answers: 1
Chemistry, 22.06.2019 04:30
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
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Chemistry, 22.06.2019 10:30
Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?
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Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
Chemistry, 23.06.2019 00:30
In a ball-and-stick molecular model, what do the sticks represent?
Answers: 1
Asample of helium has a volume of 5 liters and a pressure of 699 mmhg. if the final volume is 5.7 li...
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