Recent activity by DelLeavens22

1 answer 33 views

How can environmental chemistry concepts be integrated into high school chemistry curriculums to increase student awareness and understanding of the impact of chemistry on the environment?

asked 6 days ago in Chemical education

1 answer 9 views

Identify and explain the role of the metal ion in the active site of the metalloenzyme carbonic anhydrase, and discuss how its coordination environment affects its catalytic activity.

answered Jan 31 in Coordination Chemistry

1 answer 48 views

Calculate the enthalpy change for the combustion of methane gas (CH4) at constant pressure, given that the standard enthalpy of formation for CH4 is -74.8 kJ/mol and the balanced chemical equation for the combustion reaction is:CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (l) The molar enthalpy of formation of CO2 is -393.5 kJ/mol and that of H2O is -285.8 kJ/mol.

asked Jan 23 in Chemical thermodynamics

1 answer 68 views

A chemistry student needs to calculate the standard enthalpy change for the combustion reaction of methane gas (CH4) at 298 K and 1 atm pressure. The equation for the reaction is:CH4(g) + 2O2(g) --> CO2(g) + 2H2O(l)Given the following standard enthalpies of formation at 298 K:ΔHf(CO2) = -393.5 kJ/molΔHf(H2O) = -285.8 kJ/molΔHf(CH4) = -74.8 kJ/molCalculate ΔHrxn, the standard enthalpy change for the combustion reaction of methane gas.

answered Jan 22 in Chemical thermodynamics

1 answer 46 views

What is the name of the following organic compound?CH3CH2CH2CHO

asked Jan 21 in Organic Chemistry

1 answer 8 views

Where does case series/case report fit in the hierarchy of evidence?

asked Jan 16 in Psychology

1 answer 19 views

When evaluating the theories of social influence, what is obedience?

answered Jan 16 in Psychology

1 answer 19 views

What is psychotherapeutics?

answered Jan 14 in Psychology

1 answer 36 views

What is the difference between grief and mourning?

answered Jan 14 in Psychology

1 answer 35 views

What is the 'paradox of freedom' according to Rollo May?

answered Jan 10 in Psychology

1 answer 42 views

What are biochemical compounds, such as fats and oils, that consist of fatty acids and store energy?

asked Jan 2 in Science

1 answer 16 views

Pure substances have a constant composition and can only be changed through what?

answered Dec 31, 2024 in Science

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