Recent activity by Mckenzie2132

1 answer 28 views

How can chemistry students increase public awareness about the important role of chemistry in society and the economy?

answered 23 hours ago in Chemical education

1 answer 26 views

Calculate the standard enthalpy change (∆H°) for the dissolution reaction of 5.00 grams of sodium chloride (NaCl) in 100.0 mL of water, given that the final temperature of the solution was 25.0°C and the heat capacity of the solution was 4.18 J/g°C. The molar mass of NaCl is 58.44 g/mol and the density of water is 1.00 g/mL.

asked 2 days ago in Chemical thermodynamics

1 answer 36 views

Calculate the enthalpy change (ΔH) for the following reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)using the following bond enthalpies (in kJ/mol):NH3(g): N-H = 391, N ≡ N = 941O2(g): O=O = 498NO(g): N=O = 628H2O(g): O-H = 463

answered Jan 23 in Inorganic Chemistry

1 answer 39 views

Who created the idea of gratitude interventions?

asked Jan 20 in Psychology

1 answer 5 views

When treating mental illness, why is it important to consider the individual's cultural background?

asked Jan 17 in Psychology

1 answer 25 views

Which body system controls all the others by sending electrical messages?

asked Jan 8 in Science

1 answer 19 views

What is the term for a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction?

answered Jan 7 in Science

1 answer 6 views

What is the base unit that frequency is typically measured in?

answered Jan 6 in Science

1 answer 33 views

What is it called when multiple faults are located in close proximity to one another?

asked Jan 6 in Science

1 answer 27 views

How does the epidermis renew its layer?

answered Dec 27, 2024 in Science

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