Recent activity by KristyLesage

1 answer 29 views

What are the mechanical properties of a polymer-based biomaterial that would make it suitable for tissue engineering applications, and how can these properties be optimized through chemical modifications to the polymer?

asked Feb 14 in Polymer Chemistry

1 answer 74 views

How can a chemical engineer develop a cost-efficient and environmentally sustainable process for the production of 1,4-dioxane, a versatile organic compound used in various industries, including the manufacturing of surfactants, solvents, and plastics?

asked Jan 30 in Chemical engineering

1 answer 83 views

How can the concentration of lead in a water sample be quantified using atomic absorption spectroscopy?

answered Jan 29 in Analytical Chemistry

1 answer 57 views

Calculate the enthalpy change (in kJ/mol) for the chemical reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) Given the standard enthalpies of formation (ΔHf°) for C2H5OH(l) = -277.6 kJ/mol, CO2(g) = -393.5 kJ/mol, and H2O(l) = -285.8 kJ/mol.

answered Jan 23 in Chemical thermodynamics

1 answer 84 views

Balance the chemical equation for the reaction between nitrogen gas (N2) and hydrogen gas (H2) to produce ammonia gas (NH3) in its simplest form.

asked Jan 21 in Inorganic Chemistry

1 answer 8 views

Consider two organic compounds with the molecular formula C5H10, one of which is a cyclic alkene and the other one is an acyclic alkene. Both of them exhibit positional isomerism as well. Identify the two compounds and draw their structural formulas.

asked Jan 21 in Organic Chemistry

1 answer 54 views

What is the frequency of sound waves perceived by humans?

answered Jan 20 in Psychology

1 answer 58 views

According to the cognitive-behavioural theory, how does negative self-talk contribute to anxiety?

asked Jan 20 in Psychology

1 answer 31 views

What are the similarities between Bandura's social learning theory and Skinner's behaviourism?

answered Jan 17 in Psychology

1 answer 60 views

What is the two-factor theory of emotion proposed by Schachter and Singer?

answered Jan 15 in Psychology

1 answer 39 views

According to the prototype theory, how do we categorise objects or concepts?

asked Jan 15 in Psychology

1 answer 42 views

Who is known for their work on positive psychology?

asked Jan 13 in Psychology

1 answer 69 views

What word do get from the arabic al-qili, meaning “ashes of the saltwort plant from salt marshes”?

asked Jan 8 in Science

1 answer 36 views

What is the most abundant biochemical compound?

asked Jan 7 in Science

1 answer 65 views

What is the common name of mixtures of hydrocarbons that formed over millions of years from the remains of dead organisms?

asked Jan 6 in Science

1 answer 41 views

What do you call a growing mass of cancerous cells that pushes into nearby tissues?

answered Jan 6 in Science

1 answer 35 views

What are the ends of long bones called?

answered Jan 3 in Science

1 answer 23 views

The sum of the pressures of the hydrogen and the water vapor is equal to what?

answered Jan 2 in Science

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