Recent activity by PaulineF6290

1 answer 25 views

How can chemistry be effectively communicated to the general public in terms of its importance and impact on society and the economy?

answered 1 day ago in Chemical education

1 answer 14 views

Determine the hybridization of the central atom in the molecule SF6.

asked 1 day ago in Inorganic Chemistry

1 answer 21 views

Calculate the standard enthalpy change for the neutralization of HCl with NaOH, given that the heat of formation of water is -285.8 kJ/mol, the heat of formation of NaCl is -411.1 kJ/mol, and the initial concentrations of HCl and NaOH are 1.0 M.

answered 2 days ago in Chemical thermodynamics

1 answer 34 views

Calculate the standard enthalpy change (ΔH°) for the reaction where 1 mol of solid sodium hydroxide (NaOH) dissolves in excess water to produce 1 mol of aqueous solution and releases heat. Given that the standard enthalpy of formation (ΔH°f) for NaOH(s) is -425.6 kJ/mol, the heat capacity of the aqueous solution is 4.18 J/gK, and the change in temperature (ΔT) is observed to be 8.0°C for 250 g of the solution.

answered 2 days ago in Chemical thermodynamics

1 answer 49 views

Assuming a carbon-carbon double bond length of 1.33 Å and a carbon-hydrogen single bond length of 1.09 Å, what is the approximate bond length of a carbon-carbon triple bond in a molecule with a linear geometry?

asked Jan 22 in Physical Chemistry

1 answer 17 views

What is the importance of play for cognitive development?

asked Jan 20 in Psychology

1 answer 41 views

What is Bystander Apathy?

asked Jan 17 in Psychology

1 answer 36 views

Please compare the modular and distributed processing models.

answered Jan 15 in Psychology

1 answer 40 views

How is the attachment theory used in therapy?

asked Jan 15 in Psychology

1 answer 27 views

How do nature and nurture interact in human development?

answered Jan 14 in Psychology

1 answer 51 views

What is the psychodynamic perspective?

asked Jan 13 in Psychology

1 answer 6 views

What type of organism causes many common diseases such as strep throat and food-borne illnesses?

asked Jan 8 in Science

1 answer 18 views

What are reactions that can occur only in one direction called?

answered Jan 3 in Science

1 answer 31 views

How many dimensions can humans see in?

answered Dec 30, 2024 in Science

1 answer 30 views

How do autotrophs get food?

asked Dec 30, 2024 in Science

1 answer 53 views

Biochemistry is the study of the chemistry of?

asked Dec 30, 2024 in Science

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