Chemistry, 08.09.2020 03:01 GreenHerbz206
While burning coal and charcoal, you notice that coal releases more heat than charcoal. What does that mean?
A. The elastic energy is lower in charcoal than in coal.
B. The chemical potential energy is lower in charcoal than in coal.
C. The chemical potential energy is higher in charcoal than in coal.
D. The elastic energy is higher in charcoal than in coal.
Answers: 1
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Which three statements represent the benefits of performing experiments using computer simulations?
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4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.
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Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
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While burning coal and charcoal, you notice that coal releases more heat than charcoal. What does th...
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