Answers by KathleenWeis

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Calculate the standard enthalpy change for the reaction: 2H2(g) + O2(g) → 2H2O(l)Given the standard enthalpies of formation are: ΔHf°(H2O(l)) = -285.8 kJ/mol ΔHf°(H2(g)) = 0 kJ/mol ΔHf°(O2(g)) = 0 kJ/mol Assume all reactants and products are at standard state conditions.

answered 2 days ago in Chemical thermodynamics

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How can the purity of an unknown substance be determined using melting point analysis and what are the factors that can affect the accuracy of this technique?

answered Jan 29 in Analytical Chemistry

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Calculate the heat required to raise the temperature of a 50 g sample of water from 25°C to 85°C, given that the specific heat capacity of water is 4.184 J/g°C.

answered Jan 23 in ThermoChemistry

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Why is intersectionality important when it comes to language?

answered Jan 17 in Psychology

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When applying social learning theory in parenting, what is suggested for parents to reduce aggression?

answered Jan 17 in Psychology

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Proteins are one of four classes of what type of compounds?

answered Dec 31, 2024 in Science

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Organs, vessels, and lymph make up what system?

answered Dec 31, 2024 in Science

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In the chest, the trachea divides as it enters the lungs to form the right and left what?

answered Dec 31, 2024 in Science

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How are bacteria identified and classified?

answered Dec 30, 2024 in Science

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A catalyst decreases the amount of what resource that is required in order to begin a chemical reaction?

answered Dec 30, 2024 in Science

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