Recent activity by ShaniStill29

1 answer 57 views

Calculate the lattice energy of LiF using the Born-Haber cycle, given the following enthalpies of formation and sublimation energies: ΔH°sub (Li) = 161 kJ/mol ΔH°sub (F2) = 155 kJ/mol ΔH°f (LiF) = - 590 kJ/mol IE (Li) = 520 kJ/mol EA (F) = -328 kJ/mol.

answered Jan 23 in Inorganic Chemistry

1 answer 35 views

A chemistry student has 100 grams of ammonia and 50 grams of oxygen. What is the limiting reactant in the reaction if the balanced equation is:4NH3 + 3O2 → 2N2 + 6H2O And how much of the other reactant will be left over after the reaction is complete?

asked Jan 22 in Chemical reactions

1 answer 26 views

Who developed the information-motivation-behavioural skills model?

answered Jan 20 in Psychology

1 answer 4 views

How can correlation coefficients inform us about the relationship between two variables?

asked Jan 17 in Psychology

1 answer 6 views

According to Descartes, how does the mind and body interact?

answered Jan 17 in Psychology

1 answer 16 views

Why might a therapist use cognitive-behavioural therapy?

asked Jan 17 in Psychology

1 answer 20 views

What is secondary appraisal in the Transactional Model?

answered Jan 16 in Psychology

0 answers 13 views

When was the fear-avoidance model of pain proposed?

asked Jan 16 in Psychology

1 answer 5 views

According to the operant conditioning model, what is the cause of addiction?

answered Jan 16 in Psychology

1 answer 4 views

What is the importance of history in psychology?

answered Jan 14 in Psychology

1 answer 16 views

What is the BATNA concept?

asked Jan 13 in Psychology

1 answer 35 views

What is the rising and sinking of warm and cooler material called?

answered Jan 7 in Science

1 answer 26 views

Radioactive isotopes are characterized by an unstable what?

asked Dec 31, 2024 in Science

1 answer 22 views

Prokaryotic cells can only regulate gene expression by controlling the amount of what?

answered Dec 31, 2024 in Science

1 answer 21 views

Most members of what kingdom of spore-making organisms grow on the forest floor, where the dark and damp environment is rich?

answered Dec 31, 2024 in Science

1 answer 20 views

Conservation of what property of ecosystems is the aim of measures like the endangered species act?

asked Dec 30, 2024 in Science

1 answer 7 views

What mechanism is used by living organisms to pass along genes?

asked Dec 27, 2024 in Science

1 answer 27 views

Corals build hard exoskeletons that grow to become what?

answered Dec 27, 2024 in Science

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