Answers by PoppyScheffe

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Calculate the standard enthalpy change for the fusion reaction of 50g of ice at 0°C with 450g of liquid water at 25°C. The molar enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/g·°C. Assume there are no heat losses to the surroundings.

answered Feb 3 in Chemical thermodynamics

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What is the mechanism of bioluminescence in fireflies and how does it differ from other bioluminescent organisms in terms of the photochemical properties involved in the process?

answered Jan 31 in PhotoChemistry

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How much lead is present in a water sample collected from a local river using atomic absorption spectroscopy?

answered Jan 30 in Analytical Chemistry

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When evaluating theories in existential psychology, what is the importance of considering the ecological validity?

answered Jan 16 in Psychology

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What type of butterfly do birds avoid eating since it makes them sick?

answered Jan 8 in Science

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What do you call a pure substance that cannot be broken down into different types of substances?

answered Jan 6 in Science

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The rate of what process depends on how many of an organism’s genes have changed over a period of time and on the generation time of a particular species?

answered Jan 2 in Science

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Evolution happens because of what?

answered Dec 30, 2024 in Science

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