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37
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How does the concentration of lead in soil affect the growth of plants?
answered
Feb 19
in
Environmental Chemistry
0
votes
40
views
How does the use of photovoltaic cells, which are the primary component of solar panels, impact the environment in terms of resource consumption and waste generation?
answered
Feb 14
in
Environmental Chemistry
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124
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How does the entropy of a system change during an irreversible process such as an exothermic chemical reaction? Use the concepts of non-equilibrium thermodynamics to explain your answer.
answered
Feb 13
in
Physical Chemistry
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76
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How can we improve the compatibility of polymer blends to enhance their mechanical properties?
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Feb 13
in
Polymer Chemistry
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33
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What are the key chemical reactions and processes involved in designing a system for the production of cosmetics, and how can they be optimized to improve quality and efficiency?
answered
Feb 12
in
Chemical engineering
0
votes
43
views
How can the incorporation of carbon nanotubes and graphene oxide in polymer-based composites enhance the mechanical properties and durability of aerospace materials?
answered
Feb 7
in
Polymer Chemistry
0
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37
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How can the efficiency of biofuel production be improved by optimizing the parameters and conditions of the chemical reactions involved in the process?
answered
Feb 7
in
Chemical engineering
0
votes
33
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How can the composition of metal alloys be optimized to enhance their mechanical properties for use in high-temperature aerospace applications such as turbine engines?
answered
Feb 6
in
Materials Chemistry
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102
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How does the addition of nitrogen atoms affect the electronic and optical properties of a graphene sheet? Calculate the bandgap and absorption spectra of a graphene sheet with varying nitrogen concentration using quantum chemical calculations.
answered
Jan 31
in
Quantum Chemistry
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87
views
What strategies can be implemented to help students understand and retain the concepts of chemical reactions and equations, despite inadequate emphasis on this subject in their formal education?
answered
Jan 30
in
Chemical education
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74
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Calculate the bond dissociation energy of the H-H bond in the H2 molecule. Given the bond length of H2 is 74 pm and the enthalpy change for the reaction H2(g) → 2H(g) is 436 kJ/mol.
answered
Jan 23
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Chemical bonding
0
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100
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Why is it important to recognise a client's strengths in therapy?
answered
Jan 20
in
Psychology
0
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58
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According to the Cognitive Theory of Multimedia Learning, what is the modality effect?
answered
Jan 15
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Psychology
0
votes
61
views
What is the main critique of the sociocultural theory?
answered
Jan 15
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Psychology
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44
views
What is the hierarchy of needs proposed by Abraham Maslow?
answered
Jan 13
in
Psychology
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107
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Which state of matter has an intermediate level of entropy between solid and gas?
answered
Jan 8
in
Science
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42
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Which molecules in the body holds energy?
answered
Jan 8
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Science
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121
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Which part of the nerve cell helps transmit nerve impulses?
answered
Jan 8
in
Science
0
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93
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What is the process by which some solids transition directly into gases?
answered
Jan 7
in
Science
0
votes
102
views
Discover What Copper Mesh Cable Is
answered
Jan 7
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