Chemistry, 20.01.2020 19:31 nadiareese
Chloroflurocarbons (cfcs) are no longer used as refrigerants because they destroy the ozone layer. trichlorofluoromethane (ccl3f) boils are 23.8c and its molar heat of vaporization is 24.8 kj/mol. calculate the molar entropy of evaporation of cc3f (l)
Answers: 2
Chemistry, 22.06.2019 09:00
Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?
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Chemistry, 22.06.2019 10:00
Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer
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Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chloroflurocarbons (cfcs) are no longer used as refrigerants because they destroy the ozone layer....
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