Recent activity by CharlotteLer

1 answer 24 views

Calculate the standard enthalpy change for the reaction between hydrochloric acid and potassium hydroxide to produce potassium chloride and water, given that the heat of neutralization of hydrochloric acid and sodium hydroxide is -57.1 kJ/mol.

asked 2 days ago in Chemical thermodynamics

1 answer 28 views

Calculate the standard enthalpy change for the combustion reaction of octane (C8H18) using the following balanced chemical equation:C8H18 + 12.5O2 →8CO2 + 9H2O Given the standard enthalpies of formation for CO2, H2O, and octane are -394 kJ/mol, -286 kJ/mol, and -249 kJ/mol respectively.

asked 2 days ago in Chemical thermodynamics

1 answer 34 views

Who proposed the stress-diathesis model of pain?

answered Jan 16 in Psychology

1 answer 26 views

When appraising the construct validity of a test, what is being evaluated?

asked Jan 16 in Psychology

1 answer 22 views

How can the evolutionary theory of motivation be criticised?

answered Jan 16 in Psychology

1 answer 22 views

When evaluating the dual process model of grief, what strength can be pointed out?

asked Jan 15 in Psychology

1 answer 55 views

When was the theory of perceptual load developed?

asked Jan 15 in Psychology

1 answer 20 views

What are some self-care strategies for managing anxiety?

answered Jan 14 in Psychology

1 answer 42 views

What is the facial feedback hypothesis?

asked Jan 13 in Psychology

1 answer 16 views

Who developed attachment theory?

answered Jan 13 in Psychology

1 answer 20 views

Would you find cells that contain a cell wall, a large central vacuole, and plastids in plant or animal cells?

asked Jan 8 in Science

1 answer 16 views

What is the opposite of nuclear fusion?

asked Jan 7 in Science

1 answer 7 views

What essential molecules can be harmful if ingested in large amounts, especially if they contain saturated fatty acids from animal foods?

answered Jan 6 in Science

1 answer 20 views

Snakes use what anatomical structure to smell scents in the air?

answered Dec 31, 2024 in Science

1 answer 26 views

Remember electrons are negatively charged, so ions with a positive charge have lost what?

asked Dec 31, 2024 in Science

1 answer 54 views

Locus refers to the position of what on a chromosome, which controls the characteristics of an organism?

answered Dec 31, 2024 in Science

1 answer 30 views

All planets exhibit the same or nearly the same direction and shape of what path around the sun?

asked Dec 30, 2024 in Science

1 answer 24 views

Spiders use the hydrostatic pressure generated by an open type of what anatomical system to extend their legs?

answered Dec 27, 2024 in Science

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