Questions by Rex516068171

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Calculate the bond dissociation energy of the O-H bond in a water molecule (H2O) given the enthalpy change for the reaction:H2O (g) → H2 (g) + 1/2 O2 (g)ΔH = +483.6 kJ/mol(Note: the bond dissociation energy represents the energy required to break a bond into its constituent atoms.)

asked Jan 23 in ThermoChemistry

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1 answer 43 views

A student wants to determine the rate constant of a first-order reaction. The initial concentration of reactant is 0.050 M and after 60 seconds, the concentration drops to 0.025 M. What is the rate constant of the reaction?

asked Jan 22 in Chemical kinetics

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1 answer 37 views

According to the social causation hypothesis, what contributes to the greater incidence of psychosis in urban areas?

asked Jan 20 in Psychology

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1 answer 45 views

What is the psychodynamic perspective in psychology?

asked Jan 14 in Psychology

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1 answer 18 views

What is anxiety?

asked Jan 13 in Psychology

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1 answer 20 views

What do you call the movement of a substance from an area of a higher amount toward an area of lower amount?

asked Jan 6 in Science

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1 answer 45 views

What are prepared by the oxidation of secondary alcohols?

asked Jan 3 in Science

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