Recent activity by SusanBellew

1 answer 32 views

Determine the HOMO and LUMO energies of the ethylene molecule using a molecular orbital calculation, and predict whether the molecule has any potential for conjugation.

asked 1 day ago in Quantum Chemistry

1 answer 54 views

Calculate the heat energy required to sublime 25 grams of dry ice (CO2) at -78.5 °C, given the heat of sublimation for CO2 is 573 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 8 views

A sample problem for a chemistry student to solve from the subtopic Calculating the effect of changing the temperature on the equilibrium constant could be: What would be the new equilibrium constant (Kc) for the reaction 2NOCl (g) ↔ 2NO (g) + Cl2 (g) at 400 K, if the initial equilibrium constant at 300 K is 2.50 x 10^-3? Given that the enthalpy change of the reaction (∆H) is -91.84 kJ/mol and the entropy change of the reaction (∆S) is -188.8 J/mol K.

asked Jan 22 in Chemical equilibrium

1 answer 22 views

Who is known for social learning theory?

asked Jan 17 in Psychology

1 answer 26 views

According to the model of parallel processing, how is information processed in the visual system?

asked Jan 17 in Psychology

1 answer 49 views

According to the feature integration theory, what is the role of attention in binding features?

asked Jan 17 in Psychology

1 answer 6 views

According to the Theory of Triadic Influence, what are the three streams that influence a person's decision to engage in a health behaviour?

asked Jan 16 in Psychology

1 answer 18 views

What is the PERMA model in positive psychology?

asked Jan 15 in Psychology

1 answer 31 views

What is introspection in psychology?

answered Jan 15 in Psychology

1 answer 23 views

What is zone of proximal development?

asked Jan 14 in Psychology

1 answer 6 views

What is the main focus of contemporary psychology?

asked Jan 14 in Psychology

1 answer 25 views

What is the difference between a heuristic and an algorithm?

answered Jan 14 in Psychology

1 answer 35 views

What type of shots do people with allergy get?

answered Jan 8 in Science

1 answer 30 views

What are ionic substances completely held together by?

answered Jan 3 in Science

1 answer 27 views

Give an example of benthos that live near vents on the deep ocean floor.

answered Dec 30, 2024 in Science

1 answer 28 views

Carefully controlling the speed of a fission reaction produces what kind of energy?

asked Dec 30, 2024 in Science

1 answer 27 views

A symporter carries how many different molecules or ions in the same direction?

answered Dec 30, 2024 in Science

1 answer 25 views

What is the term for a small organelle where proteins are made?

asked Dec 28, 2024 in Science

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