Answers by YaniraBartle

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How can X-ray fluorescence spectroscopy be used to identify the presence of specific elements in a sample and what are the limitations of this technique?

answered 6 days ago in Analytical Chemistry

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Calculate the enthalpy change for the combustion of methane (CH4) at constant pressure, given that the heat of formation for methane is -74.9 kJ/mol and the balanced chemical equation is: CH4 (g) + 2O2 (g) -> CO2 (g) + 2H2O (l) The heat of formation for CO2 is -393.5 kJ/mol and the heat of formation for H2O is -285.8 kJ/mol.

answered Jan 23 in Chemical reactions

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22 views

When was the study on the relationship between anxiety and neuroticism by Eysenck & Eysenck conducted?

answered Jan 20 in Psychology

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Who proposed the theory of Attachment?

answered Jan 15 in Psychology

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What is anxiety?

answered Jan 13 in Psychology

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Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment?

answered Dec 31, 2024 in Science

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Archaeal cell walls contain a variety of polysaccharides and proteins but lack what?

answered Dec 27, 2024 in Science

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