Recent activity by DemetraRumse

1 answer 26 views

Calculate the standard enthalpy change for the reaction: 2NaOH (s) + H2SO4 (aq) → Na2SO4 (aq) + 2H2O (l)given that the standard enthalpy of formation of Na2SO4 (aq) is -1385 kJ/mol, and the standard enthalpies of formation of NaOH (s), H2SO4 (aq) and H2O (l) are -425 kJ/mol, -814 kJ/mol and -286 kJ/mol respectively.

asked Feb 3 in Chemical thermodynamics

1 answer 36 views

Calculate the reaction quotient, Qc, for the reaction: 2 NO2 (g) + Cl2 (g) ⇌ 2 NO2Cl (g)At a certain temperature, the concentrations were found to be: [NO2] = 0.15 M, [Cl2] = 0.20 M, and [NO2Cl] = 0.10 M.Is the reaction at equilibrium? If not, which direction would the reaction proceed to reach equilibrium?

answered Feb 3 in Chemical thermodynamics

1 answer 33 views

How does the cognitive theory inform our understanding of mental processes?

asked Jan 20 in Psychology

1 answer 8 views

According to the information processing model, why is attention important?

answered Jan 17 in Psychology

1 answer 29 views

When do we perceive the moon illusion?

asked Jan 15 in Psychology

1 answer 30 views

Who created the social identity theory?

asked Jan 14 in Psychology

1 answer 57 views

When cats mark their territory by rubbing their face against an object, they deposit chemicals released by what structures?

asked Jan 8 in Science

1 answer 22 views

What type of rocks form from sediments that are cemented and compacted?

answered Jan 8 in Science

1 answer 18 views

What makes up the dense outer layer of bones?

asked Jan 7 in Science

1 answer 14 views

What kind of energy is released when the nucleus of an atom is split?

answered Jan 7 in Science

1 answer 11 views

What class of organisms help decompose matter to release nutrients and make nutritious food for other organisms ?

asked Jan 6 in Science

1 answer 34 views

What are materials that are poor thermal conductors called?

asked Jan 3 in Science

1 answer 24 views

The electronic components in electronic devices, used to transmit and change electricity are made of?

asked Jan 2 in Science

1 answer 24 views

In vertebrates, cholesterol is synthesized in which organ and obtained from the diet?

asked Dec 27, 2024 in Science

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