Percent Composition and Determining Empirical And Molecular Formulas
PERCENT COMPOSITION
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Acontrol during an experiment. might change remains constant does not exist does change
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State one important difference between a physical change and a chemical change?
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A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction
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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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