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1
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How does the initial orientation of reactant molecules affect the rate of a chemical reaction?
asked
Feb 20
in
Chemical kinetics
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votes
1
answer
40
views
What is the effect of monomer structure on the electrical conductivity of polymer-based electronic materials?
asked
Feb 20
in
Polymer Chemistry
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votes
1
answer
24
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What is the effect of temperature on the critical micelle concentration (CMC) of a surfactant and how does it impact the surface tension of a liquid medium?
asked
Feb 20
in
Surface Chemistry
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votes
1
answer
41
views
What factors determine the bond strength of a molecule? Provide examples of molecules with strong and weak bonds, and explain how the types of bonds in those molecules contribute to their overall strength or weakness.
asked
Feb 14
in
Chemical bonding
0
votes
1
answer
29
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How does the hormone insulin regulate glucose uptake in cells, and what biochemical signals and pathways are involved in this process?
asked
Feb 13
in
BioChemistry
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1
answer
65
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How can we improve the durability and corrosion resistance of outdoor steel structures using polymer-based coatings, and what specific types of polymers and additives are most effective for this application?
asked
Feb 13
in
Polymer Chemistry
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votes
1
answer
35
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How can chemistry instructors better support students with learning disabilities in the classroom to enhance their learning experience and academic performance in the subject?
asked
Feb 4
in
Chemical education
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1
answer
68
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Determine the equilibrium constant for the reaction of the complex ion formation between silver ion (Ag+) and ammonia (NH3) in a solution at 25°C, given that the concentration of Ag+ is 0.005 M and that of NH3 is 0.025 M. The balanced equation for the reaction is Ag+ + 2NH3 ⇋ [Ag(NH3)2]+.
asked
Feb 4
in
Chemical equilibrium
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votes
1
answer
95
views
How can acetal protecting group be used in organic synthesis to selectively protect primary alcohols in the presence of secondary alcohols? Provide a step-by-step mechanism and give an example of a reaction that utilizes this strategy.
asked
Jan 30
in
Organic Chemistry
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votes
1
answer
81
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What is the concentration of a solution of hydrochloric acid (HCl) in moles per liter (M) if 25 milliliters of the HCl solution reacts completely with 35 milliliters of a 0.1 M solution of sodium hydroxide (NaOH) during a titration process?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
107
views
What is the chemical structure of an unknown compound if its proton NMR spectrum displays a triple peak at δ 1.2, a singlet peak at δ 2.0, a doublet peak at δ 3.6, and a quartet peak at δ 7.5?
asked
Jan 30
in
Analytical Chemistry
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vote
1
answer
92
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Using mass spectrometry, analyze and identify the unknown compound given to you by comparing its mass spectrum with the known compounds in the database. What is the molecular weight and functional group of the unknown compound?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
66
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Calculate the amount of heat required to polymerize 2 moles of styrene into polystyrene given the following information:The enthalpy of polymerization for styrene is -56 kJ/mol and the reaction is exothermic.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
86
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A chemistry student needs to determine the oxidation state changes of the atoms and identify the oxidizing and reducing agents in the following reaction: C2H5OH + 2 MnO4- → 2 CH3COOH + 2 MnO2 + 4 OH-
asked
Jan 22
in
Organic Chemistry
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votes
1
answer
62
views
According to the attachment theory, what is the negative impact of insecure attachments?
asked
Jan 17
in
Psychology
0
votes
1
answer
110
views
According to the connectionist theory, how do artificial intelligence models learn?
asked
Jan 15
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Psychology
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1
answer
53
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What are the limitations of using a hypothesis?
asked
Jan 15
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Psychology
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votes
1
answer
64
views
What is the meaning of cognitive restructuring?
asked
Jan 14
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Psychology
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1
answer
80
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What is the difference between cognitive and emotional intelligence?
asked
Jan 13
in
Psychology
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1
answer
72
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Which metal is not solid at room temperature?
asked
Jan 8
in
Science
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