Recent activity by Seymour89F11

1 answer 31 views

How does the absorption of light affect the photochromic properties of materials? Specifically, what are the changes in the molecular structure and color of a photochromic material upon exposure to UV light, and what factors influence these changes?

answered 4 days ago in PhotoChemistry

1 answer 50 views

How can the production of fragrances through chemical engineering processes be optimized for commercial production while minimizing waste and maximizing efficiency?

asked Feb 10 in Chemical engineering

1 answer 44 views

How can the process for the production of a specific specialty chemical be optimized to increase yield and decrease production costs?

asked Feb 10 in Chemical engineering

1 answer 60 views

How can we determine the concentration of caffeine in a particular brand of coffee by using liquid chromatography?

asked Jan 29 in Analytical Chemistry

1 answer 60 views

Calculate the enthalpy of combustion of methane if 2.56 g of methane was burnt completely in a bomb calorimeter containing excess oxygen, causing a temperature rise of 4.58 °C in the calorimeter, which has a heat capacity of 1.26 kJ/°C. The balanced chemical equation for the combustion of methane is as follows: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) + energy.

asked Jan 23 in ThermoChemistry

1 answer 94 views

What is the pKa value of acetic acid and what is the pH of a 0.1 M acetic acid solution when it is in equilibrium with its conjugate base, acetate ion?

asked Jan 21 in Organic Chemistry

1 answer 41 views

How can the bystander effect be overcome?

asked Jan 17 in Psychology

1 answer 34 views

What is the difference between acute stress disorder and post-traumatic stress disorder?

answered Jan 17 in Psychology

1 answer 26 views

What is the difference between self-determination theory and Maslow's hierarchy of needs?

asked Jan 14 in Psychology

1 answer 51 views

What is the nature of the fight or flight response?

answered Jan 14 in Psychology

1 answer 38 views

What does the central route of persuasion involve?

asked Jan 13 in Psychology

1 answer 67 views

What type of biomes are found in the salt water of the ocean?

answered Jan 8 in Science

1 answer 38 views

What process is involved in the formation of a waterfall, when a stream flows from an area of harder to softer rock?

answered Jan 7 in Science

1 answer 41 views

What is the term for water that contains one or more dissolved substances?

asked Jan 7 in Science

1 answer 25 views

What is the most common life form in the ocean?

asked Jan 7 in Science

1 answer 62 views

What gland secretes a fluid that mixes with sperm to help form semen?

asked Jan 6 in Science

1 answer 60 views

What does an electric field surround?

asked Jan 6 in Science

1 answer 46 views

Fructose and lactose are types of sugars broken down by the body to form what, which is the simplest sugar of all?

answered Dec 30, 2024 in Science

1 answer 34 views

By breaking down wastes and remains of dead organisms, decomposers perform what function in an ecosystem?

answered Dec 30, 2024 in Science

1 answer 29 views

The duodenum, the jejunum, and the ileum are the main regions of which organ?

answered Dec 27, 2024 in Science

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