Answers by Hilario7169

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Determine the standard enthalpy change for the reaction between calcium oxide and hydrochloric acid, given the following information:CaO(s) + 2HCl(aq) → CaCl2(aq) + H2O(l)∆Hf° CaCl2(aq) = -795.7 kJ/mol∆Hf° H2O(l) = -285.8 kJ/mol∆Hc° = -1922.6 kJ/mol

answered 1 day ago in Chemical thermodynamics

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Identify the unknown compound X using mass spectrometry data given below. The molecular ion peak of X is observed at m/z 120 with a relative intensity of 100%. Additionally, the following fragment peaks with their respective relative intensities were also observed: m/z 105 (40%), m/z 92 (15%), m/z 77 (10%), and m/z 65 (5%). What is the molecular formula of X and what is its structural formula?

answered 6 days ago in Analytical Chemistry

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When do cognitive biases occur?

answered Jan 17 in Psychology

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Which theory of personality focusses on the unconscious mind?

answered Jan 15 in Psychology

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What is an experimental control?

answered Jan 14 in Psychology

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What is the role of the auditory cortex in hearing?

answered Jan 13 in Psychology

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Who discovered that the andromeda nebula is over 2 million light years away

answered Jan 8 in Science

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What are the most common causes of brain injuries?

answered Jan 3 in Science

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