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0
votes
18
views
What is the most efficient method for preparing p-nitroaniline from aniline and nitric acid, and what factors affect the yield and purity of the final product?
answered
4 days
ago
in
Chemical synthesis
0
votes
43
views
What is the mechanism of Hofmann rearrangement, and how is it related to the conversion of primary amides into amines?
answered
Feb 13
in
Organic Chemistry
0
votes
65
views
What specific chemical modifications can be made to a known cardiovascular medication to increase its potency and/or reduce potential side effects?
answered
Jan 31
in
Medicinal Chemistry
0
votes
70
views
A 5 g sample of a mixture containing sand and salt is dissolved in water. The solution is filtered, and the sand is collected and dried. The dried sand has a mass of 3 g. Using mass balance calculations, determine the percentage of salt in the original mixture.
answered
Jan 22
in
Analytical Chemistry
0
votes
53
views
According to the biological model of mental illness, what is the role of neurotransmitters?
answered
Jan 20
in
Psychology
0
votes
27
views
What is the Moore's law?
answered
Jan 20
in
Psychology
0
votes
40
views
According to Piaget, how do children develop the concept of conservation?
answered
Jan 15
in
Psychology
0
votes
48
views
What is the theory of classical conditioning?
answered
Jan 15
in
Psychology
0
votes
31
views
What are the key features of a case study?
answered
Jan 15
in
Psychology
0
votes
53
views
What is the difference between sensory and short-term memory?
answered
Jan 14
in
Psychology
0
votes
60
views
What type of earthquake creates a tsunami?
answered
Jan 8
in
Science
0
votes
63
views
What is the outer layer of skin, consisting almost entirely of epithelial cells?
answered
Jan 7
in
Science
0
votes
10
views
The volume of a gas is comprised of about 10% matter. what is the rest?
answered
Jan 2
in
Science
0
votes
14
views
Soft cartilage gradually turns into hard bone through what process?
answered
Dec 31, 2024
in
Science
0
votes
47
views
Roundworms exemplify what type of organization, where two or more types of tissues work together to perform a particular function as an organ?
answered
Dec 31, 2024
in
Science
0
votes
32
views
Organs of what male biological system include the penis, testes, and epididymis?
answered
Dec 31, 2024
in
Science
0
votes
35
views
Oceans are divided into zones bases on distance from shore and what other factor?
answered
Dec 31, 2024
in
Science
0
votes
32
views
A catalytic converter filters pollutants in exhaust created by burning what before releasing it into the air?
answered
Dec 30, 2024
in
Science
0
votes
57
views
During which stage of development do all the major organs begin to form?
answered
Dec 28, 2024
in
Science
0
votes
30
views
Mammalian lungs are located in what cavity, where they are surrounded and protected by the rib cage, intercostal muscles, and chest wall?
answered
Dec 27, 2024
in
Science
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