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How can chemistry students overcome the challenges of insufficient funding for chemistry education in their institutions?
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1 day
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Chemical education
1
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Calculate the standard enthalpy change for the precipitation reaction that takes place when 25.0 mL of 0.250 M barium chloride (BaCl2) and 50.0 mL of 0.100 M sodium sulfate (Na2SO4) react to form a precipitate of barium sulfate (BaSO4). The density of each solution is 1.00 g/mL and the specific heat capacity is 4.18 J/g°C. Assume a constant temperature of 25°C.
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2 days
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Chemical thermodynamics
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What is the concentration of a solution containing CuSO4 if its absorbance is 0.472 at a wavelength of 620 nm? The molar absorptivity of CuSO4 at this wavelength is 2.34 x 10^4. The solution has a path length of 1 cm.
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6 days
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Analytical Chemistry
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What is the personal fable?
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Jan 20
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Psychology
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According to the biopsychosocial approach, what is the main emphasis in understanding health?
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Jan 16
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Psychology
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39
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Who is Edward Thorndike and what was his contribution to psychology?
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Jan 13
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Psychology
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What substances, which serve as catalysts, are involved in most of the chemical reactions that take place in organisms?
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Jan 7
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Science
1
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29
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What is defined as a change in the inherited traits of organisms over time?
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Jan 6
in
Science
1
answer
60
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The leaf chameleon (brookesia micra) was discovered in northern madagascar in 2012. at just over one inch long, it is what?
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Jan 2
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Science
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59
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What organism are resistant to freezing and drying and also are metabolically inactive?
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Dec 27, 2024
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Science
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