Recent activity by SaraMcMaster

1 answer 35 views

How can chemistry students in developing countries overcome the limited availability of textbooks and resources to adequately prepare for their exams and improve their understanding of key concepts in the subject?

asked Feb 5 in Chemical education

1 answer 32 views

Here's a precise problem for the student to solve: What is the effect of molecular weight and temperature on the shear viscosity of a polymer melt, and how does this relationship change for different types of polymer structures (e.g. linear, branched, or cross-linked)?

asked Feb 4 in Polymer Chemistry

1 answer 70 views

How does changing the concentration of a photosensitizer affect the rate of a photochemical reaction?

asked Jan 31 in PhotoChemistry

1 answer 72 views

What are the key historical milestones in the development of the periodic table of elements, and how did they contribute to our understanding of chemical elements and their behavior?

answered Jan 30 in Chemical education

1 answer 56 views

Calculate the enthalpy change (in kJ/mol) for the polymerization of ethylene to polyethylene, given that the polymerization of 1 mole of ethylene produces 3 moles of polyethylene and the enthalpy change of the reaction is -32 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 23 views

When was the Allais Paradox introduced?

asked Jan 20 in Psychology

1 answer 76 views

What is activity theory and how does it differ from disengagement theory?

asked Jan 16 in Psychology

1 answer 46 views

Which perspective emphasises the role of inherited biological processes in explaining behaviour?

asked Jan 15 in Psychology

1 answer 56 views

What does the top-down theory propose?

asked Jan 15 in Psychology

1 answer 38 views

What is indigenous psychology?

asked Jan 14 in Psychology

1 answer 36 views

What is the ingroup bias?

answered Jan 14 in Psychology

1 answer 39 views

What is the key argument of K. Warner Schaie's theory of cognitive development?

asked Jan 14 in Psychology

1 answer 56 views

Which lymphoid organ is situated in the upper chest?

answered Jan 8 in Science

1 answer 10 views

What simple sugar is the cell's primary source of energy?

answered Jan 7 in Science

1 answer 32 views

What device uses electromagnetic induction to change the voltage of electric current?

asked Jan 6 in Science

1 answer 45 views

Like birds, most other reptiles excrete their nitrogenous wastes as what acid?

answered Dec 27, 2024 in Science

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