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Explain how the glass transition temperature of a polymer is influenced by its molecular weight and degree of branching.
answered
1 day
ago
in
Physical Chemistry
1
answer
5
views
Calculate the standard enthalpy change for the neutralization reaction of hydrochloric acid (HCl) with sodium hydroxide (NaOH) when 50.0 mL of 1.0 M HCl reacts with 50.0 mL of 1.0 M NaOH in a constant pressure calorimeter. Assume the density of the final solution is the same as that of pure water (1 g/mL) and that the specific heat capacity of the final solution is 4.18 J/g K.
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2 days
ago
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Chemical thermodynamics
1
answer
21
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How does changing the reaction conditions, such as temperature and pressure, affect the properties of the final product in the production of polymers?
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2 days
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Chemical engineering
1
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30
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Why might traditional psychoanalysis take a long time?
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Jan 20
in
Psychology
1
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14
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According to the social facilitation theory, when do individuals perform better?
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Jan 17
in
Psychology
1
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4
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When considering a person's environment, what is the term for the settings that make up daily life?
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Jan 17
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Psychology
1
answer
20
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What are the similarities and differences between bipolar disorder and major depressive disorder?
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Jan 17
in
Psychology
1
answer
20
views
What is the definition of character strengths?
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Jan 15
in
Psychology
1
answer
19
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What is the self-determination theory of sexuality?
answered
Jan 15
in
Psychology
1
answer
40
views
What is the term for the energy of motion, which is exhibited by the speed of an object?
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Jan 7
in
Science
1
answer
45
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What historical event taught people that soil could be lost by plowing and growing crops and encouraged new methods to prevent erosion?
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Jan 6
in
Science
1
answer
20
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What do you call the separation of ions that occurs when a solid ionic compound dissolves?
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Jan 6
in
Science
1
answer
36
views
What are chromosomes in the same pair called?
asked
Jan 2
in
Science
1
answer
20
views
The earliest vertebrates were jawless what?
answered
Jan 2
in
Science
1
answer
28
views
Crests and troughs are the high and low points of a what?
answered
Dec 30, 2024
in
Science
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