Questions by SamiraY20394

0 votes

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)

asked 1 day ago in Chemical reactions

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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

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1 answer 19 views

How are protozoa that cause giardiasis spread?

asked Dec 30, 2024 in Science

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