Recent activity by MarianneAmos

1 answer 29 views

How can chemistry students carry out hands-on experiments at home or in a limited-resource school setting with limited access to laboratory equipment and chemicals?

answered 1 day ago in Chemical education

1 answer 27 views

Calculate the standard entropy change of the following reaction: 2Fe(s) + 3Cl2(g) → 2FeCl3(s) Given that the standard enthalpy change for this reaction is -400 kJ/mol at 298 K and the standard molar entropy of FeCl3(s) is 95 J/mol K.

answered 2 days ago in Inorganic Chemistry

1 answer 61 views

How can you identify the presence of nitrate ions in a given solution using ion-selective electrodes and what is the concentration of nitrate ions in the solution?

asked 6 days ago in Analytical Chemistry

1 answer 37 views

Calculate the heat of hydration for the reaction where 1 mol of anhydrous copper sulfate combines with 5 mol of water to form 1 mol of hydrated copper sulfate given that the enthalpy change of the reaction is -65 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 21 views

Why is Erik Erikson's theory important for understanding human development?

asked Jan 17 in Psychology

1 answer 18 views

How does the psychodynamic perspective explain personality development?

answered Jan 15 in Psychology

1 answer 4 views

What is the role of a community in indigenous psychology?

answered Jan 14 in Psychology

1 answer 5 views

What is the difference between short-term and long-term memory?

asked Jan 13 in Psychology

1 answer 51 views

Which part of an earthquake is in the ground where the ground breaks?

answered Jan 8 in Science

1 answer 17 views

What kinds of acids are proteins made out of?

answered Jan 7 in Science

1 answer 20 views

What is the term for animals that defend their area?

asked Jan 7 in Science

1 answer 49 views

What is the term for a connection between a neuron and its target cell?

answered Jan 7 in Science

1 answer 19 views

What is the process by which organisms change in small ways over time?

asked Jan 7 in Science

1 answer 29 views

What is the lowest energy state of the atom called?

answered Jan 7 in Science

1 answer 30 views

The global pattern of precipitation is influenced by movements of what?

answered Jan 2 in Science

1 answer 34 views

Natural selection cannot create new variations in organisms - these new variations must be created by what, which are usually associated with some sort of abnormality?

asked Dec 31, 2024 in Science

1 answer 9 views

Deeper layers of rock must be older than layers closer to the surface, this is the law of what?

answered Dec 30, 2024 in Science

1 answer 29 views

At what time of life does menopause occur?

answered Dec 30, 2024 in Science

1 answer 7 views

After what life stage does the fusion inside a star end?

answered Dec 28, 2024 in Science

1 answer 23 views

How close a measurement is to the correct value for that measurement is known as what?

answered Dec 28, 2024 in Science

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