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What is the optimal reaction condition, i.e. temperature, pressure, and catalyst type, for synthesizing polyethylene terephthalate from terephthalic acid and ethylene glycol to achieve the highest yield and quality of the product?
answered
Feb 21
in
Chemical synthesis
0
votes
36
views
What is the molecular geometry and polarity of the nitrate ion (NO3-)?
answered
Feb 21
in
Inorganic Chemistry
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27
views
How does the method of graphene synthesis affect its properties and suitability for electronic devices?
answered
Feb 20
in
Materials Chemistry
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38
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What is the geometry and polarity of the inorganic molecule sulfur dioxide (SO2)?
answered
Feb 14
in
Inorganic Chemistry
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37
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How can the use of nanotechnology improve the energy storage capacity of lithium-ion batteries?
answered
Feb 13
in
Materials Chemistry
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votes
41
views
How can the critical temperature of superconducting materials be increased to enable their use in everyday applications?
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Feb 6
in
Materials Chemistry
0
votes
40
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How can chemistry teachers provide better support for students with learning disabilities in the classroom to ensure they have equal access to education and achieve academic success?
answered
Feb 5
in
Chemical education
0
votes
85
views
What is the concentration of lead (Pb) and cadmium (Cd) in a water sample collected from a polluted river using atomic absorption spectroscopy?
answered
Jan 30
in
Analytical Chemistry
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votes
61
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How can the concentration of nickel in a given soil sample be determined using atomic absorption spectroscopy?
answered
Jan 29
in
Analytical Chemistry
0
votes
67
views
What is the strength of Buhler's lifespan development theory?
answered
Jan 16
in
Psychology
0
votes
121
views
What are the five levels of the Ecological Systems Theory?
answered
Jan 15
in
Psychology
0
votes
33
views
Where does the concept of hegemonic masculinity come from?
answered
Jan 15
in
Psychology
0
votes
106
views
What are the limitations of the input hypothesis in explaining language development?
answered
Jan 15
in
Psychology
0
votes
82
views
Who developed the concept of empathic attunement?
answered
Jan 15
in
Psychology
0
votes
40
views
Who is the founder of positive psychology?
answered
Jan 13
in
Psychology
0
votes
87
views
What type of plant tissue transports water and dissolved mineral upward to the leaves?
answered
Jan 8
in
Science
0
votes
53
views
What measures exactly how much gravity is pulling on something?
answered
Jan 7
in
Science
0
votes
42
views
What is the principal cell of connective tissues?
answered
Jan 7
in
Science
0
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45
views
What guards the opening between the right atrium and the right ventricle?
answered
Jan 6
in
Science
0
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71
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The smallest and lightest alcohols (methanol, ethanol, propanol) are completely soluble in?
answered
Jan 2
in
Science
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