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User OrvalFrankla
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0
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67
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What is the balanced chemical equation for the synthesis reaction of magnesium oxide (MgO) when magnesium (Mg) reacts with oxygen gas (O2)?
answered
Feb 17
in
Chemical reactions
0
votes
23
views
How do persistent organic pollutants (POPs) affect the soil quality in agricultural areas and what can be done to mitigate their impact on crop production and human health?
answered
Feb 14
in
Environmental Chemistry
0
votes
141
views
What hybrid orbitals would you expect for the central atom in a molecule of CH3OH?
answered
Feb 13
in
Chemical bonding
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88
views
How can the production process of a specific specialty chemical be optimized to increase yield and minimize waste?
answered
Feb 10
in
Chemical engineering
0
votes
141
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Calculate the polarization of a copper-silver galvanic cell in which the concentration of copper ions is 0.5 M, the concentration of silver ions is 0.1 M, and the cell is operating at a temperature of 25°C. The potential difference of the cell is measured to be 0.75 V.
answered
Feb 3
in
ElectroChemistry
0
votes
69
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Calculate the entropy change for the combustion of methane (CH4) at 298 K and 1 atm pressure, given the standard molar entropies of CH4, H2O (g), and O2 (g) are 186.3 J/K/mol, 188.7 J/K/mol, and 205.0 J/K/mol, respectively. The balanced chemical equation for the reaction is:CH4 (g) + 2 O2 (g) -> CO2 (g) + 2 H2O (g)
answered
Jan 23
in
Chemical thermodynamics
0
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141
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Assuming that the volume of the system is constant, how will the equilibrium concentration of reactants and products be affected if the temperature is increased for the following reaction: 2 SO2(g) + O2(g) ⇌ 2 SO3(g) (a) Predict the direction of the reaction shift and explain why(b) Predict the effect of the temperature change on the equilibrium value of Kc for the reaction.
answered
Jan 22
in
Chemical equilibrium
0
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125
views
What is the major product of the following elimination reaction and what is the mechanism involved? CH3CH2CH2Br + KOH ------>
answered
Jan 21
in
Organic Chemistry
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117
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Which one of the following pairs has alkane and cycloalkane isomers?a) Butane and cyclobutane b) Pentane and cyclopropane c) Hexane and cyclohexane d) Heptane and cycloheptane
answered
Jan 21
in
Organic Chemistry
0
votes
119
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When evaluating a theory, what is the criterion for predictive power?
answered
Jan 20
in
Psychology
0
votes
128
views
What is the assumption of the social learning theory of conflict?
answered
Jan 17
in
Psychology
0
votes
105
views
Who emphasised the importance of rewards and punishments in shaping behaviour?
answered
Jan 17
in
Psychology
0
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48
views
What is the strengths of evidence-based practice?
answered
Jan 16
in
Psychology
0
votes
80
views
Who developed the concept of Self-Care?
answered
Jan 15
in
Psychology
0
votes
108
views
What is the difference between 'serial processing' and 'parallel processing'?
answered
Jan 14
in
Psychology
0
votes
65
views
Which virus causes cold sores?
answered
Jan 8
in
Science
0
votes
57
views
Which kind of vertebrates are amphibians?
answered
Jan 8
in
Science
0
votes
127
views
What is the term for an underground layer of rock that is saturated with groundwater?
answered
Jan 7
in
Science
0
votes
175
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What is the term for a period when temperatures are cooler than normal causing glaciers to spread to lower latitudes?
answered
Jan 7
in
Science
0
votes
130
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The carrying angle is larger in females to accommodate their what?
answered
Dec 31, 2024
in
Science
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