Recent activity by Krystyna23F4

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What steps can a chemistry student take to access limited chemistry textbooks and resources for self-study without access to a physical library or bookstore?

answered 6 days ago in Chemical education

1 answer 51 views

Calculate the entropy change (∆S) for the reaction of 2 moles of solid NH4Cl with 1 mole of NaOH in a coffee cup calorimeter at a constant temperature of 25°C. The reaction takes place in 100 mL of water and produces 2 moles of NH3 and 1 mole of NaCl in solution. Assume that the specific heat capacity of water is 4.18 J/g·K and that the final solution temperature after the reaction is complete is 25°C.

asked Jan 23 in Chemical thermodynamics

1 answer 85 views

What is the major product(s) of the following nucleophilic substitution reaction between 1-bromopropane and sodium ethoxide in ethanol: 1-bromopropane + sodium ethoxide → ? + sodium bromide

answered Jan 21 in Organic Chemistry

1 answer 48 views

What was the Stanford Prison Experiment?

asked Jan 20 in Psychology

1 answer 25 views

What was the aim of Watson and Rayner's experiment on Little Albert?

asked Jan 20 in Psychology

1 answer 42 views

According to the attachment theory, what are the types of attachment styles?

answered Jan 20 in Psychology

1 answer 35 views

Where is the criterion of explanatory power relevant?

answered Jan 16 in Psychology

1 answer 16 views

Where does pragmatism argue that research should be done?

answered Jan 16 in Psychology

1 answer 38 views

What ethical issues are psychologists confronted with in their practice?

asked Jan 14 in Psychology

1 answer 17 views

What are the stages of Levinson's theory of adult development?

asked Jan 14 in Psychology

1 answer 26 views

What is caused by bodies sliding over rough surfaces?

answered Jan 6 in Science

1 answer 21 views

What device uses an electromagnet to change electrical energy to kinetic energy?

answered Jan 6 in Science

1 answer 39 views

What celestial bodies are born in clouds of gas and dust called nebulas?

answered Jan 6 in Science

1 answer 30 views

What are daily changes in the level of ocean water called?

asked Jan 2 in Science

1 answer 36 views

The name carbon tetrachloride implies one carbon atom and four of which other atoms?

answered Jan 2 in Science

1 answer 58 views

How do organisms grow and repair themselves?

answered Dec 30, 2024 in Science

1 answer 27 views

Group 16 is called the oxygen group. what is the only metalloid in this group?

answered Dec 30, 2024 in Science

1 answer 9 views

What do you call a mirror shaped like the inside of a bowl?

asked Dec 28, 2024 in Science

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