Questions by EdwardIkx16

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1 answer 21 views

How can the periodic table be effectively used to predict the properties of unknown elements and understand their relationship to other known elements?

asked 1 day ago in Chemical education

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1 answer 28 views

How can the molecular weight and branching of polymers affect the drug release rate in polymer-based drug delivery systems?

asked 1 day ago in Polymer Chemistry

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1 answer 33 views

Develop a process for the synthesis and purification of aspirin from salicylic acid, highlighting the key reaction steps and techniques used to obtain a high purity product.

asked 6 days ago in Chemical engineering

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1 answer 35 views

Determine the standard enthalpy of formation of methane (CH4) using Hess's Law, given the following reactions and enthalpy changes: 1. C(graphite) + 2H2(g) -> CH4(g) ΔH1 = -74.6 kJ/mol 2. 2H2(g) + O2(g) -> 2H2O(l) ΔH2 = -571.7 kJ/mol 3. C(graphite) + O2(g) -> CO2(g) ΔH3 = -393.5 kJ/mol.

asked 6 days ago in Chemical thermodynamics

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1 answer 19 views

What is the impact of child temperament on parenting?

asked Jan 17 in Psychology

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1 answer 19 views

What is a key difference between grounded theory and content analysis?

asked Jan 15 in Psychology

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1 answer 20 views

Compare and contrast the authoritarian and authoritative parenting styles.

asked Jan 14 in Psychology

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1 answer 34 views

What do populations gain through births and immigration?

asked Jan 6 in Science

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1 answer 10 views

What are organisms called, like the red-winged blackbird, that eat many different types of food?

asked Jan 3 in Science

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1 answer 52 views

Use of oil-consuming bacteria to clean up an oil spill is an example of what?

asked Jan 2 in Science

0 votes

1 answer 27 views

How many calories of energy does one gram of sugar or starch provide?

asked Dec 30, 2024 in Science

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