Recent activity by XavierGoolsb

1 answer 26 views

How can chemistry students effectively supplement limited opportunities for hands-on experimentation in the classroom to enhance their understanding of complex chemical concepts?

asked 6 days ago in Chemical education

1 answer 58 views

What is the effect of catalysts on the rate of a chemical reaction in terms of activation energy? And, using the Arrhenius equation, calculate the activation energy for the catalyzed and non-catalyzed reactions and compare the two values.

asked Jan 31 in Physical Chemistry

1 answer 84 views

What new techniques can be developed for the synthesis of zeolites that would result in enhanced efficiency and specific physicochemical properties suitable for industrial applications?

asked Jan 30 in Materials Chemistry

1 answer 77 views

What is the composition of a mixture containing benzene, toluene, and xylene using gas chromatography?

answered Jan 30 in Analytical Chemistry

1 answer 43 views

Calculate the enthalpy of formation of sodium chloride from its constituent elements, given the following thermochemical equations:2Na (s) + 1/2 O2 (g) -> Na2O (s) ΔH° = -414.1 kJ/mol Na2O (s) + 1/2 Cl2 (g) -> NaCl (s) ΔH° = -411.2 kJ/mol

asked Jan 23 in ThermoChemistry

1 answer 8 views

When was the social learning theory developed?

asked Jan 15 in Psychology

1 answer 21 views

What is the psychodynamic theory of anxiety?

asked Jan 13 in Psychology

1 answer 36 views

What model postulates that electrons orbit the nucleus at fixed energy levels?

asked Jan 7 in Science

1 answer 44 views

Materials that are good conductors of thermal energy are called?

answered Dec 31, 2024 in Science

1 answer 39 views

Because the nuclei of each h atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). but because the two atoms involved in the covalent bond are both h atoms, each nucleus attracts the electrons by the same amount. thus the electron pair is equally shared by these?

answered Dec 30, 2024 in Science

1 answer 13 views

What helps screen libraries for a gene of interest using nucleic acid hybridization?

asked Dec 27, 2024 in Science

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