Recent activity by Shari7998231

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Given a sample of dry ice (solid CO2) with a mass of 50 grams, calculate the amount of heat energy that needs to be added to sublimate it completely into gaseous CO2 at a temperature of -78.5°C. The heat of sublimation of CO2 is 25.2 kJ/mol. (Assume that CO2 is an ideal gas under these conditions.)

asked 1 day ago in ThermoChemistry

1 answer 25 views

Determine the bond angles in a water molecule using the principles of Quantum Chemistry.

answered 1 day ago in Quantum Chemistry

1 answer 59 views

What are the effects of changing the concentration of polymer solution on the mechanical properties (such as mechanical strength and elasticity) of 3D-printed structures?

asked 4 days ago in Materials Chemistry

1 answer 46 views

Calculate the bond length between two hydrogen atoms if the bond energy is 436 kJ/mol.

answered Jan 23 in Chemical bonding

1 answer 26 views

According to social learning theory, what intermediary processes exist between our behaviours and environmental stimuli?

asked Jan 20 in Psychology

0 answers 18 views

Who proposed the notion of resilience?

asked Jan 17 in Psychology

1 answer 37 views

Please discuss the strengths and weaknesses of cognitive psychology.

asked Jan 16 in Psychology

1 answer 17 views

Compare the cognitive and physiological effects of alcohol and marijuana.

answered Jan 16 in Psychology

1 answer 20 views

According to the Discovery Learning Model, what is exploration?

answered Jan 15 in Psychology

1 answer 23 views

What is the role of resilience in end of life care?

asked Jan 13 in Psychology

1 answer 17 views

What is the importance of peer relationships in teenage development?

asked Jan 13 in Psychology

1 answer 23 views

What mirrors diverge light rays and, thus, have a negative focal length?

answered Jan 7 in Science

1 answer 6 views

What is the column of hot rock that continuously brings hot rock up from the mantle toward the crust?

answered Jan 6 in Science

1 answer 47 views

Unlike a crystalline solid, an amorphous solid is a solid that lacks a what?

answered Jan 2 in Science

1 answer 32 views

How is the radioactive decay measured?

asked Dec 30, 2024 in Science

1 answer 12 views

Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements?

answered Dec 30, 2024 in Science

1 answer 50 views

After ovulation occurs, the moving “fingers” of what nearby structure sweep the egg into its tube?

answered Dec 28, 2024 in Science

1 answer 24 views

The purpose of any cooling system is to transfer what type of energy in order to keep things cool?

answered Dec 28, 2024 in Science

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