Answers by PatriciaHart

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Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C, given the following information: The standard enthalpy of fusion of solid carbon dioxide is 8.4 kJ/mol and the standard enthalpy of vaporization of gaseous carbon dioxide is 22.1 kJ/mol.

answered 2 days ago in Chemical thermodynamics

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What is the chemical reaction involved in acid mine drainage and how does it affect the pH and mineral content of water bodies?

answered 6 days ago in Environmental Chemistry

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What are some effective strategies for understanding complex chemical concepts, and how can they be applied to improve your performance in chemistry class?

answered 6 days ago in Chemical education

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Calculate the Gibbs free energy change for the electrochemical reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Given the standard reduction potentials: E°(Cu2+/Cu) = 0.34 V E°(Zn2+/Zn) = -0.76 V Assuming standard conditions of 1 M concentration and 1 atm pressure at 25°C.

answered Jan 23 in ElectroChemistry

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According to the change blindness paradigm, how do people miss changes in a visual display?

answered Jan 20 in Psychology

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What is the strength of Piaget's cognitive development theory?

answered Jan 16 in Psychology

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What is the wheeled robot developed by nasa to explore the surface of mars?

answered Jan 7 in Science

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The fact that all living things share the same biochemical building blocks is molecular evidence of what theorized process?

answered Jan 2 in Science

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Most air masses form over what two types of regions?

answered Dec 31, 2024 in Science

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