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0
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18
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What is the most effective type and concentration of catalyst to use in the production of adhesives, and how does it affect the overall quality of the final product?
answered
3 days
ago
in
Chemical engineering
0
votes
20
views
What is the mechanism of the Friedel-Crafts acylation reaction and how does it differ from the Friedel-Crafts alkylation reaction when synthesizing aromatic compounds? Provide an example of each reaction and explain their selectivities.
answered
5 days
ago
in
Organic Chemistry
0
votes
31
views
How does the chemical structure of a drug affect its mechanism of action in the body, and what factors can influence the pharmacokinetics and pharmacodynamics of the drug?
answered
6 days
ago
in
Medicinal Chemistry
0
votes
26
views
What is the molecular structure of pyridine and how does its electron density distribution affect its chemical reactivity and properties as a heterocyclic compound?
answered
Feb 14
in
Organic Chemistry
0
votes
33
views
What is the effect of increasing the concentration of reactants on the reaction rate and equilibrium of a chemical reaction?
answered
Feb 13
in
Chemical kinetics
0
votes
30
views
How does changing the concentration of reactants affect the rate of a second-order reaction? Provide an experimental design to determine the reaction order and rate constant for a given chemical reaction.
answered
Feb 13
in
Chemical kinetics
0
votes
38
views
How can the properties of the resulting polyurethane be optimized by altering the amount and type of diisocyanate and polyol used in the synthesis process?
answered
Feb 10
in
Chemical synthesis
0
votes
38
views
Calculate the standard enthalpy change for the precipitation reaction of solid silver chloride (AgCl) from the aqueous solution with the precipitation agent, hydrochloric acid (HCl). Given the molar enthalpies of formation of AgCl(s) and HCl(g) are -127.01 kJ/mol and -92.31 kJ/mol, respectively. The balanced equation for the reaction is: AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)
answered
Feb 3
in
Chemical thermodynamics
0
votes
60
views
A chemist analyzed a sample of unknown substance and found that it contains 55% carbon, 9.17% of hydrogen and the rest of the mass is oxygen. What is the percentage by mass of oxygen in the sample?
answered
Jan 22
in
Analytical Chemistry
0
votes
51
views
How does evolutionary theory explain gender differences in mate selection?
answered
Jan 20
in
Psychology
0
votes
30
views
Who is known for developing the social learning theory?
answered
Jan 17
in
Psychology
0
votes
41
views
Compare the effectiveness of antipsychotics and Cognitive-Behavioural Therapy CBT in treating delusions and hallucinations in schizophrenia.
answered
Jan 16
in
Psychology
0
votes
34
views
Outline social influence theory
answered
Jan 15
in
Psychology
0
votes
36
views
What is the difference between gender and sex?
answered
Jan 14
in
Psychology
0
votes
42
views
What is the social identity complexity theory?
answered
Jan 13
in
Psychology
0
votes
25
views
Where is roughage fermented and digested in pseudo-ruminants?
answered
Jan 8
in
Science
0
votes
43
views
What category of joints is immovable?
answered
Jan 6
in
Science
0
votes
44
views
What are the simplest types of carbon-based compounds?
answered
Jan 6
in
Science
0
votes
24
views
What ancestors did caecillians evolve from?
answered
Jan 2
in
Science
0
votes
60
views
Silver, gold, and copper all conduct what very well?
answered
Dec 31, 2024
in
Science
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