Recent activity by SamiraY20394

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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)

asked 1 day ago in Chemical reactions

1 answer 32 views

Calculate the standard electrode potential of the following cell reaction at 25°C: Cu(s) | Cu2+ (0.01 M) || Zn2+ (1.0 M) | Zn(s)

answered 2 days ago in ElectroChemistry

1 answer 46 views

Compare and contrast the cognitive perspectives on attention with the biological perspective. Please evaluate which perspective provides a more accurate account of attention.

asked Jan 20 in Psychology

1 answer 21 views

How does Gestalt therapy view resistance?

answered Jan 16 in Psychology

1 answer 5 views

How has Gestalt psychology influenced other areas of psychology?

answered Jan 16 in Psychology

1 answer 24 views

What is the central nervous system?

answered Jan 15 in Psychology

1 answer 17 views

What is the PERMA model in positive psychology?

answered Jan 15 in Psychology

1 answer 27 views

Who proposed the Self-Efficacy Theory?

answered Jan 15 in Psychology

1 answer 26 views

Silver and ordinary table salt are two examples of chemical what?

answered Dec 31, 2024 in Science

1 answer 19 views

How are protozoa that cause giardiasis spread?

asked Dec 30, 2024 in Science

1 answer 54 views

Earthworms and segmented worms belong to what phylum?

answered Dec 30, 2024 in Science

1 answer 20 views

Do motile cilia usually occur in small or large numbers on the cell surface?

answered Dec 27, 2024 in Science

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