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User SueCasteel38
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What are the resonance structures of nitrate ion (NO3-) and how can they be identified using formal charges and electron-dot structures?
asked
Feb 21
in
Chemical bonding
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votes
1
answer
77
views
How do the properties of surfactants change as their concentration and temperature vary?
asked
Feb 17
in
Surface Chemistry
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1
answer
74
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How can we design drugs that effectively target HIV virus while minimizing side effects on the human body?
asked
Feb 12
in
Medicinal Chemistry
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1
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82
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What are the current limitations in designing drugs for cancer treatment and how can chemical modifications of existing compounds improve their efficacy and reduce their side effects on healthy cells?
asked
Feb 12
in
Medicinal Chemistry
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1
answer
88
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How can the knowledge of enzyme or receptor structure and function be used to design drugs with high selectivity and affinity for the target enzyme or receptor?
asked
Feb 7
in
Medicinal Chemistry
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1
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157
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What are the most effective study strategies and techniques that can help a chemistry student better understand complex chemical concepts and overcome difficulties in learning?
asked
Jan 30
in
Chemical education
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103
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Calculate the enthalpy change for the reaction below using Hess's Law and the given thermochemical equations:2H2(g) + O2(g) -> 2H2O(g) deltaH1 = -484 kJ/molH2(g) + 1/2O2(g) -> H2O(g) deltaH2 = -242 kJ/mol 2H2O(g) -> 2H2(g) + O2(g) deltaH3 = +484 kJ/mol
asked
Jan 23
in
ThermoChemistry
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1
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93
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Calculate the enthalpy change (∆H) for the combustion reaction of methane gas (CH4) using Hess’s Law, when the enthalpy changes for the following reactions are given: Reaction 1: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l); ∆H = -891 kJ/mol Reaction 2: C (s) + O2 (g) → CO2 (g); ∆H = -393.5 kJ/mol Reaction 3: 2H2 (g) + O2 (g) → 2H2O (l); ∆H = -484 kJ/mol
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
123
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How do the cognitive and behavioural approaches to therapy differ?
asked
Jan 20
in
Psychology
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1
answer
48
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Why is reclaimed language important?
asked
Jan 20
in
Psychology
+1
vote
1
answer
199
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According to Vygotsky, how do children acquire knowledge?
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Jan 17
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Psychology
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1
answer
108
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Who developed the term 'emic' and 'etic'?
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Jan 16
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Psychology
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1
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48
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What is the self-disclosure theory?
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Jan 16
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Psychology
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1
answer
61
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What is a confounding variable, and how can it be controlled for?
asked
Jan 16
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Psychology
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votes
1
answer
62
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What is the triarchic model of creativity?
asked
Jan 15
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Psychology
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1
answer
48
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Who proposed the theory of Attachment?
asked
Jan 15
in
Psychology
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1
answer
59
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What is introspection in psychology?
asked
Jan 15
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Psychology
0
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1
answer
144
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What is the relationship between depression and genetics?
asked
Jan 14
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Psychology
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1
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66
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What is the primary criticism of the trait approach to personality?
asked
Jan 10
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Psychology
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1
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62
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When referring to genes, what term describes the property of having multiple phenotypic effects?
asked
Jan 8
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Science
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