Answers by DanielleVanw

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What is the difference between an aldehyde and a ketone, and how is this difference reflected in their physical and chemical properties? Provide examples of each compound and explain how their functional groups impact their reactivity.

answered 4 days ago in Organic Chemistry

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23 views

What is the heat of formation of water (H2O) at standard conditions (25°C and 1 atm pressure) if the enthalpy change of the reaction 2H2(g) + O2(g) → 2H2O(l) is -484 kJ/mol?

answered 5 days ago in Chemical bonding

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25 views

Sure, here's a question for the student to solve: What is the general formula for alkanes and cycloalkanes, and how do their physical properties differ? Provide a specific example of each and compare their boiling points.

answered 5 days ago in Organic Chemistry

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26 views

What is the effect of varying ratios of metals in an alloy on its strength and ductility, and which alloy composition would be most suitable for use in high-stress aerospace applications?

answered 5 days ago in Materials Chemistry

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28 views

What is the effect of the central metal ion on the spectroscopic properties of metalloporphyrins and metallophthalocyanines? Provide experimental evidence to support your answer.

answered Feb 18 in Coordination Chemistry

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20 views

What is the effect of pH on the activity of the enzyme invertase in breaking down sucrose into glucose and fructose?

answered Feb 17 in BioChemistry

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28 views

How does the presence of metallic nanoparticles enhance the Raman signal in Surface-enhanced Raman spectroscopy (SERS) and what factors influence the enhancement efficiency?

answered Feb 17 in Surface Chemistry

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39 views

What are the electrical properties of graphene, and how can they be optimized for use in high-performance electronic devices?

answered Feb 13 in Materials Chemistry

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42 views

What is the total number of ATP molecules generated per glucose molecule during Citric acid cycle and oxidative phosphorylation?

answered Feb 13 in BioChemistry

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9 views

How can the synthesis of new materials be optimized to enhance their ability to effectively remove contaminants from water sources?

answered Feb 11 in Materials Chemistry

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38 views

How can the synthesis and characterization of new materials for use in fuel cells be optimized to improve the efficiency and durability of fuel cell technology?

answered Feb 11 in Materials Chemistry

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41 views

How can the stability of a colloidal solution be affected by changing the pH of the system?

answered Feb 10 in Surface Chemistry

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39 views

How can chemistry students effectively learn and conduct experiments that require specialized laboratory equipment without access to such equipment and facilities?

answered Feb 4 in Chemical education

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69 views

How do carbohydrate-protein interactions and recognition affect the binding specificity and selectivity between enzymes and their substrates in biochemical reactions?

answered Jan 31 in BioChemistry

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48 views

Calculate the enthalpy of ionization of hydrogen gas (H₂) given that it requires 1312 kJ/mol to ionize a single hydrogen atom (H) in the gas phase.

answered Jan 23 in ThermoChemistry

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97 views

What is the cognitive neuroscience approach's evaluation of visual illusions?

answered Jan 20 in Psychology

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42 views

When was the Wechsler Adult Intelligence Scale WAIS first published?

answered Jan 20 in Psychology

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24 views

According to research on cognitive dissonance, what do people experience when they hold contradictory beliefs or attitudes?

answered Jan 20 in Psychology

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63 views

Where can we find evidence for the construct validity of a theory in organisational psychology?

answered Jan 16 in Psychology

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39 views

Who proposed the gate control theory?

answered Jan 16 in Psychology

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