Patti used a steel wrench to work on her bicycle on a hot, sunny day. she left the wrench on the hot concrete surface for an hour while she had lunch. when she returned, the wrench was very hot to touch. what is the best explanation for how the wrench got so hot? a. heat transferred from the wrench to the air. b. heat transferred from the wrench to the concrete. c. heat transferred from the concrete to the wrench. d. heat transferred from the bicycle to the wrench.
Answers: 2
Chemistry, 22.06.2019 13:00
Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table
Answers: 3
Chemistry, 22.06.2019 22:30
You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.
Answers: 3
Chemistry, 22.06.2019 23:00
What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures
Answers: 1
Chemistry, 23.06.2019 08:30
According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.
Answers: 1
Patti used a steel wrench to work on her bicycle on a hot, sunny day. she left the wrench on the hot...
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