Answers by DorieBarth39

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What is the effect of the chemical composition of a polymer-based adhesive on its bonding strength and durability?

answered 1 day ago in Polymer Chemistry

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How can chemistry students effectively learn and apply experimental techniques when faced with limited opportunities for hands-on experimentation in the classroom setting?

answered Feb 4 in Chemical education

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Determine the standard enthalpy of formation of nitrogen dioxide (NO2) given that the balanced equation for the combustion of one mole of NO2 is:4NO2(g) + 6H2O(l) → 4HNO3(aq) + 2NO(g)The standard enthalpies of formation for HNO3(l), H2O(l), and NO(g) are -174.1 kJ/mol, -285.8 kJ/mol, and 90.4 kJ/mol, respectively.

answered Feb 4 in Chemical thermodynamics

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Calculate the standard enthalpy change for the formation of ethylene glycol (C2H6O2) from its elements given that the standard enthalpies of formation of carbon dioxide, water, and ethylene glycol are -393.5 kJ/mol, -285.8 kJ/mol, and -421.1 kJ/mol respectively.

answered Feb 3 in Chemical thermodynamics

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How do behaviour and evolutionary psychology explain sexual attraction?

answered Jan 14 in Psychology

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What is grouping?

answered Jan 14 in Psychology

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Compare and contrast the validity and reliability of norm-referenced and criterion-referenced tests.

answered Jan 13 in Psychology

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What are inorganic compounds that take the form of discrete molecules called?

answered Jan 3 in Science

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