Recent activity by TraceyX33447

1 answer 38 views

Determine the VSEPR geometry of the methane molecule (CH4) and draw its Lewis structure.

answered 6 days ago in Chemical bonding

1 answer 60 views

How can chemistry teachers encourage universities and organizations to provide more chemistry-related extracurricular activities for students to participate in, despite the limited availability in their local area?

asked Jan 30 in Chemical education

1 answer 52 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 60 views

Calculate the amount of heat required to sublime 50 grams of dry ice (CO2) at -78.5°C given that the heat of sublimation for CO2 is 25.2 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 10 views

What is the importance of conducting cross-cultural research in psychology?

answered Jan 16 in Psychology

1 answer 45 views

Who is associated with the social identity theory?

asked Jan 16 in Psychology

1 answer 40 views

What does a correlation coefficient of -1 indicate?

asked Jan 16 in Psychology

1 answer 22 views

According to the feminist theory, what is the consequence of women's obsession with thinness on their empowerment?

asked Jan 15 in Psychology

1 answer 17 views

What is addiction?

asked Jan 14 in Psychology

1 answer 38 views

What is perceptual set?

answered Jan 14 in Psychology

1 answer 25 views

What might be a diathesis factor for depression?

asked Jan 13 in Psychology

1 answer 9 views

With an increased understanding of gene regulation and gene function, medicines can be designed to specifically target diseased cells without harming these?

asked Jan 8 in Science

1 answer 40 views

What human bodily function does cellulose help with?

asked Jan 6 in Science

1 answer 12 views

Pakicetus and rodhocetus are considered to be ancestors of modern what?

answered Dec 31, 2024 in Science

1 answer 24 views

In adaptive radiation, what is the name of the initial species that then subsequently becomes multiple other ones?

asked Dec 31, 2024 in Science

1 answer 12 views

How does uric acid react to water?

answered Dec 27, 2024 in Science

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