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Answers by CandraIdk507
0
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26
views
What chemical reaction occurs during the decomposition of potassium chlorate, and what are the products formed?
answered
Feb 19
in
Chemical reactions
0
votes
37
views
How does the change in the electronic and optical properties of perovskite materials affect the efficiency of solar cells made from these materials?
answered
Feb 18
in
Quantum Chemistry
0
votes
35
views
What is the balanced chemical equation for the synthesis reaction between iron and sulfur to form iron(II) sulfide?
answered
Feb 17
in
Chemical reactions
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votes
29
views
What is the mechanism for the acid-catalyzed hydration of alkenes and its intermediates?
answered
Feb 17
in
Organic Chemistry
0
votes
61
views
Using electrophilic addition reactions, explain the mechanism of the addition of HBr to propene and predict the major product formed.
answered
Feb 13
in
Organic Chemistry
0
votes
56
views
How does the coordination chemistry of metalloproteins play a crucial role in determining their biological activity? Provide specific examples of metalloproteins and their coordination environments to support your answer.
answered
Feb 12
in
Coordination Chemistry
0
votes
110
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What is the effect of adding a catalyst on the equilibrium position of the redox reaction between potassium permanganate (KMnO4) and oxalic acid (H2C2O4)? Calculate the new equilibrium constant (Kc) and explain how the addition of the catalyst affects the forward and reverse reaction rates.
answered
Jan 30
in
Chemical equilibrium
+1
vote
98
views
What is the concentration of lead (Pb) in a water sample collected from a nearby river, using atomic absorption spectroscopy?
answered
Jan 30
in
Analytical Chemistry
0
votes
96
views
Calculate the enthalpy of oxidation of methane gas ($CH_4$) when it is burned completely in the presence of excess oxygen gas ($O_2$), given that the standard enthalpy of formation of $CH_4$ is -74.8 kJ/mol and the standard enthalpy of formation of $H_2O$ is -285.8 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
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64
views
Calculate the amount of heat absorbed when 20 grams of ice at -10°C is melted and then warmed to 30°C. The specific heat of ice is 2.09 J/g°C, the specific heat of water is 4.18 J/g°C and the enthalpy of fusion of ice is 6.01 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
134
views
How can normative influence be used for social change?
answered
Jan 17
in
Psychology
0
votes
42
views
According to the Young-Helmholtz theory, how does color vision work?
answered
Jan 17
in
Psychology
0
votes
77
views
What is the ecological validity?
answered
Jan 16
in
Psychology
0
votes
41
views
What is the criticism of cognitive psychology?
answered
Jan 16
in
Psychology
0
votes
74
views
When does classical conditioning occur according to Pavlov?
answered
Jan 15
in
Psychology
0
votes
45
views
Who is associated with the cognitive-behavioural therapy for depression?
answered
Jan 15
in
Psychology
0
votes
38
views
What is perceptual illusion?
answered
Jan 15
in
Psychology
0
votes
89
views
What is the role of culture in grief and mourning?
answered
Jan 14
in
Psychology
0
votes
36
views
What keeps earth in orbit around the sun?
answered
Jan 7
in
Science
0
votes
132
views
What is the unit used to measure air pressure?
answered
Jan 7
in
Science
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