Recent activity by SueCasteel38

1 answer 78 views

How does the size and composition of a nanoscale material affect its electronic structure and quantum transport properties?

answered Feb 24 in Quantum Chemistry

1 answer 80 views

How does the presence of a catalyst affect the rate of a chemical reaction and can this effect be quantified and measured accurately in the laboratory?

answered Feb 22 in Chemical kinetics

1 answer 73 views

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

1 answer 68 views

How does the type and concentration of inorganic compounds affect their electrical conductivity?

answered Feb 20 in Inorganic Chemistry

1 answer 77 views

How do the properties of surfactants change as their concentration and temperature vary?

asked Feb 17 in Surface Chemistry

1 answer 100 views

How does heavy metal contamination in soil affect crop growth and yield, and what are some effective methods to remediate contaminated soil for sustainable agriculture practices?

answered Feb 13 in Environmental Chemistry

1 answer 75 views

How can we design drugs that effectively target HIV virus while minimizing side effects on the human body?

asked Feb 12 in Medicinal Chemistry

1 answer 82 views

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

1 answer 88 views

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

1 answer 78 views

How can the design of drugs that target the cholinergic pathway be optimized for the treatment of Alzheimer's disease?

answered Feb 7 in Medicinal Chemistry

1 answer 95 views

How can chemistry students effectively learn and understand laboratory techniques and concepts with limited access to laboratory equipment and facilities?

answered Feb 4 in Chemical education

1 answer 157 views

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

1 answer 103 views

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

1 answer 93 views

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

1 answer 123 views

How do the cognitive and behavioural approaches to therapy differ?

asked Jan 20 in Psychology

1 answer 48 views

Why is reclaimed language important?

asked Jan 20 in Psychology

1 answer 199 views

According to Vygotsky, how do children acquire knowledge?

asked Jan 17 in Psychology

1 answer 158 views

What is the biological theory explanation for borderline personality disorder?

answered Jan 17 in Psychology

1 answer 47 views

Why is a null hypothesis necessary?

answered Jan 17 in Psychology

1 answer 46 views

What is theoretical bias?

answered Jan 16 in Psychology

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