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User EmelyColton2
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0
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32
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What is the boiling point of a substance that has only London dispersion forces as its intermolecular force, compared to a substance that has both London dispersion and dipole-dipole forces?
answered
Feb 17
in
Chemical bonding
0
votes
33
views
How does the adsorption energy of a gas molecule on a metal surface change as the metal's electronic properties vary, and how can Density Functional Theory (DFT) calculations be used to predict and optimize this behavior?
answered
Feb 17
in
Computational Chemistry
0
votes
64
views
Identify the type of hybrid orbitals present in the methane (CH4) molecule and explain how they contribute to the bonding in the molecule.
answered
Feb 13
in
Chemical bonding
0
votes
60
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What is the effect of increasing the pH on the equilibrium position of the redox reaction between MnO4- and Fe2+ in acidic medium?
answered
Feb 13
in
Chemical equilibrium
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votes
35
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How can chemistry teachers provide effective support to students with learning disabilities during laboratory experiments?
answered
Feb 5
in
Chemical education
0
votes
84
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Calculate the standard enthalpy change (in kJ/mol) for the following reaction involving solutions: NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)Given the following enthalpy values:NaOH(aq): -469.2 kJ/mol HCl(aq): -167.2 kJ/mol NaCl(aq): -411.2 kJ/mol H2O(l): -285.8 kJ/mol
answered
Feb 3
in
Chemical thermodynamics
0
votes
115
views
How does changing the reactant orientation in a chemical reaction affect the reaction rate? Provide specific examples and experimental data to support your answer.
answered
Feb 3
in
Chemical kinetics
0
votes
106
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What is the balanced chemical equation for the reaction between potassium permanganate (KMnO4) and hydrogen peroxide (H2O2) in acidic medium?
answered
Jan 21
in
Inorganic Chemistry
0
votes
50
views
Where does the concept of 'existential crisis' fit within the broader context of psychology?
answered
Jan 20
in
Psychology
0
votes
70
views
Why are stereotype threats particularly harmful for older adults?
answered
Jan 20
in
Psychology
0
votes
53
views
How can self-help strategies assist in recovery?
answered
Jan 20
in
Psychology
0
votes
96
views
Who proposed the use of effect sizes?
answered
Jan 20
in
Psychology
0
votes
38
views
When did informed consent become a requirement for human research?
answered
Jan 17
in
Psychology
0
votes
65
views
According to attachment theory, how does secure attachment impact an individual's mental health?
answered
Jan 17
in
Psychology
0
votes
84
views
When was the social cognitive theory first proposed?
answered
Jan 16
in
Psychology
0
votes
53
views
What is validity?
answered
Jan 14
in
Psychology
0
votes
92
views
What is the principle of reinforcement in behaviourism?
answered
Jan 10
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Psychology
0
votes
47
views
What is another name for collar cells?
answered
Jan 6
in
Science
0
votes
162
views
The heart contracts rhythmically to pump what to the lungs and the rest of the body?
answered
Jan 2
in
Science
0
votes
43
views
Many species use their body shape and coloration to avoid what?
answered
Dec 31, 2024
in
Science
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