Chemistry, 04.10.2020 16:01 javondailey2891
A group of scientists produces a sample of potassium by extracting it from a giant truckload of bananas. 97.00 kg of the potassium is K-39 (38.897 amu), 21.00 kg of the potassium is K-40 (39.955 amu), and 11.00 kg of the potassium is K-41 (40.965 amu). What is the average atomic mass of the potassium in this sample?
Answers: 1
Chemistry, 22.06.2019 06:40
Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
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Chemistry, 22.06.2019 09:00
Identify the electromagnets with poles that are reversed from the electromagnet shown above
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Chemistry, 22.06.2019 09:40
Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
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Air can be considered a mixture. which statement does not explain why?
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A group of scientists produces a sample of potassium by extracting it from a giant truckload of bana...
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