Questions by IsabellaOcto

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1 answer 78 views

How does the photochemical reaction rate of a given substance change with an increase in temperature, and what is the relationship between temperature and activation energy of the reaction?

asked Feb 22 in PhotoChemistry

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1 answer 87 views

What is the effect of varying the cross-linking density on the water absorbency and swelling behavior of polymer-based superabsorbent materials?

asked Feb 19 in Polymer Chemistry

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1 answer 73 views

What is the balanced chemical equation for the decomposition of calcium carbonate (CaCO3) when heated?

asked Feb 17 in Chemical reactions

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1 answer 79 views

What is the balanced chemical equation for the combustion of methane gas (CH4) in oxygen gas (O2) during a redox reaction?

asked Feb 17 in Chemical reactions

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1 answer 85 views

How does the activity of a catalyst influence the reaction rate of the decomposition of hydrogen peroxide?

asked Feb 17 in Chemical kinetics

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1 answer 163 views

What is the role of cholesterol in maintaining the fluidity and permeability of the cell membrane?

asked Feb 12 in BioChemistry

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1 answer 125 views

How can the stability of an emulsion be affected by factors such as temperature, pH, and the addition of emulsifiers, and what are the mechanisms behind these effects?

asked Feb 10 in Surface Chemistry

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1 answer 151 views

How does changing the pH of a redox reaction involving copper and zinc affect the equilibrium position and which ion, Cu2+ or Zn2+, is favored?

asked Feb 3 in Chemical equilibrium

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1 answer 147 views

How do changes in the secondary and tertiary structure of a protein affect its function? Provide specific examples.

asked Jan 31 in BioChemistry

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1 answer 83 views

Calculate the equilibrium constant at 25°C for the reaction: CO(g) + 3H2(g) ⇌ CH4(g) + H2O(g) If at equilibrium, the concentration of CO is 0.10 M, H2 is 0.20 M, CH4 is 0.015 M and H2O is 0.035 M.

asked Jan 23 in Chemical equilibrium

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1 answer 117 views

Calculate the current density in an electrochemical cell if a current of 2.5 A is passed through a copper electrode with a surface area of 25 cm² and a silver electrode with a surface area of 10 cm² for 3 hours. The half-cell potentials of copper and silver electrodes are +0.34 V and +0.80 V, respectively, and the molar concentrations of copper and silver ions in the electrolyte are 0.5 M and 1 M, respectively.

asked Jan 23 in ElectroChemistry

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1 answer 82 views

Calculate the bond dissociation energy (in kJ/mol) of the C-H bond in methane (CH4) using experimental data.

asked Jan 23 in ThermoChemistry

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1 answer 110 views

Why is it important to use appropriate statistical methods in psychology?

asked Jan 20 in Psychology

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1 answer 51 views

Why is the placebo effect a concern in research?

asked Jan 20 in Psychology

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1 answer 56 views

What is the difference between a Type I error and a Type II error?

asked Jan 17 in Psychology

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1 answer 41 views

What is a major criticism of the trait theory of personality?

asked Jan 16 in Psychology

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1 answer 101 views

Where did Positive Psychology originate?

asked Jan 15 in Psychology

0 votes

1 answer 143 views

According to Erikson, when does the intimacy vs. isolation stage occur?

asked Jan 15 in Psychology

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1 answer 47 views

What is the role of triangulation in qualitative research?

asked Jan 15 in Psychology

0 votes

1 answer 79 views

What is state-dependent memory?

asked Jan 15 in Psychology

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