Recent activity by ErnestoBrook

1 answer 30 views

How can chemistry students overcome the challenge of limited availability of chemistry-related internships and job opportunities in today's market?

asked 20 hours ago in Chemical education

1 answer 32 views

Here is a problem related to Hess's Law for the student to solve:Suppose you are given the following three equations, each with their respective enthalpy change: (1) 2H2(g) + O2(g) --> 2H2O(l) ΔH₁ = -572 kJ/mol (2) 2H2O(l) --> 2H2(g) + O2(g) ΔH₂ = 472 kJ/mol (3) C(s) + O2(g) --> CO2(g) ΔH₃ = -394 kJ/molUse Hess's law to calculate the enthalpy change (in kJ/mol) for the following reaction: C(s) + 2H2(g) --> CH4(g)

answered 1 day ago in Chemical reactions

1 answer 33 views

Calculate the standard enthalpy change for the neutralization of 25 mL of 0.10 M hydrochloric acid with 25 mL of 0.10 M sodium hydroxide. Assume the specific heat capacity of the solution to be 4.18 J/(g*K) and the density of the solution to be 1.00 g/mL. The temperature change observed during the reaction was 4.5°C.

asked 2 days ago in Chemical thermodynamics

1 answer 25 views

What is the Solution-Focussed Therapy approach?

answered Jan 16 in Psychology

1 answer 13 views

How can normative social influence be evaluated?

answered Jan 16 in Psychology

1 answer 24 views

Describe Lewin's field theory?

answered Jan 15 in Psychology

1 answer 15 views

Why is parsimony important in theory evaluation?

answered Jan 15 in Psychology

1 answer 22 views

What is the male gaze?

answered Jan 14 in Psychology

1 answer 27 views

What is the concept of ego integrity versus despair in Erikson's psychosocial theory?

asked Jan 10 in Psychology

1 answer 26 views

What kind of scientist is concerned with facets of geomorphology, topography, vegetation, and climate?

answered Jan 7 in Science

1 answer 28 views

What is the structure which hangs from a newly hatched salmon larva?

asked Jan 7 in Science

1 answer 35 views

What is responsible for our sense of balance?

answered Jan 6 in Science

1 answer 47 views

What is it called when a liquid displays more attraction between the liquid particles than attraction between the liquid and the glass?

answered Jan 6 in Science

1 answer 22 views

The process in which the nucleus divides is called what?

asked Jan 2 in Science

1 answer 9 views

The dead, dry stratum corneum is the most superficial layer of what and is the layer exposed to the outside environment?

asked Dec 31, 2024 in Science

1 answer 7 views

Each antibody can bind with just one specific type of what, resulting in a signal for a phagocyte to destroy them?

answered Dec 30, 2024 in Science

1 answer 15 views

What corrosive substances capable of dissolving many metals can cause contamination if spilled?

answered Dec 28, 2024 in Science

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