Chemistry, 29.07.2019 01:30 antonjas001
Amixture containing 21.4 g of ice (at exactly 0.00 ∘c) and 75.3 g of water (at 55.3 ∘c) is placed in an insulated container. assuming no loss of heat to the surroundings, what is the final temperature of the mixture?
Answers: 1
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Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?
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Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.
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Chemistry, 22.06.2019 16:40
Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg
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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
Amixture containing 21.4 g of ice (at exactly 0.00 ∘c) and 75.3 g of water (at 55.3 ∘c) is placed in...
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