Questions by JuliannJfv26

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1 answer 34 views

Calculate the standard enthalpy change for the formation of 2 moles of water vapor (H2O(g)) if the combustion of 1 mole of methane gas (CH4(g)) results in the formation of 2 moles of water vapor and 1 mole of carbon dioxide gas (CO2(g)). Given that the standard enthalpy change of combustion of methane is -890.4 kJ/mol.

asked 2 days ago in Chemical thermodynamics

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1 answer 21 views

Calculate the power output of an electrochemical cell that uses a cathode made of silver metal immersed in a solution containing silver ions with a concentration of 0.05 M and an anode made of zinc metal immersed in a solution containing zinc ions with a concentration of 0.1 M. The temperature of the solutions is 298 K and the cell operates at a current of 0.5 A.

asked 2 days ago in ElectroChemistry

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1 answer 25 views

When treating PTSD, what is eye movement desensitisation and reprocessing?

asked Jan 17 in Psychology

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1 answer 13 views

What is the relationship between authenticity and anxiety in existential psychology?

asked Jan 13 in Psychology

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1 answer 17 views

Who proposed the concept of the collective unconscious?

asked Jan 10 in Psychology

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1 answer 26 views

What is the source of most of the energy used?

asked Jan 7 in Science

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1 answer 23 views

What is driven by the sun's energy and moves water over the surface of earth?

asked Jan 6 in Science

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1 answer 43 views

The heterotroph eats only or mainly what?

asked Jan 2 in Science

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1 answer 29 views

Group 15 of the periodic table is also called which group?

asked Dec 30, 2024 in Science

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1 answer 10 views

Bilaterally symmetrical animals have both dorsal and what type of sides?

asked Dec 27, 2024 in Science

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