Recent activity by JosefinaMcEv

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Calculate the enthalpy change for the ionization of magnesium, given that it requires 738 kJ/mol to remove an electron from a gaseous magnesium atom, and that the ionization energy for a second electron is 1450 kJ/mol.

asked Jan 23 in ThermoChemistry

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A gas is contained in a cylinder at a pressure of 1 atm and a temperature of 25°C. The cylinder is fitted with a piston that can be moved to change the volume. The gas is allowed to expand irreversibly to a final pressure of 0.5 atm, and the temperature is kept constant. Calculate the work done by the system, and determine if the process is endothermic or exothermic.

answered Jan 22 in Physical Chemistry

1 answer 7 views

Why do psychologists use double-blind procedures in research?

answered Jan 20 in Psychology

1 answer 31 views

According to the somatic marker hypothesis, what is the role of emotions in decision-making?

asked Jan 20 in Psychology

1 answer 26 views

According to the humanistic approach, what is the role of free will in personal growth?

answered Jan 20 in Psychology

1 answer 7 views

Why are longitudinal studies useful for establishing cause and effect relationships?

answered Jan 20 in Psychology

1 answer 54 views

How does self-efficacy relate to positive psychology?

asked Jan 15 in Psychology

1 answer 33 views

Why do effusive eruptions rarely kill anyone?

answered Jan 8 in Science

1 answer 16 views

What is the message sent from the nucleus to the ribosome?

asked Jan 7 in Science

1 answer 45 views

The process of moving from areas of high amounts to areas of low amounts is called what?

answered Jan 2 in Science

1 answer 24 views

Spores are the basic reproductive units of what organism?

answered Dec 31, 2024 in Science

1 answer 30 views

What has atoms with unstable nuclei?

asked Dec 28, 2024 in Science

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