Grade 11 · Week 24 · U6
Essential question: How can energy changes be combined across reaction pathways?
Different reaction sequences can produce the same overall chemical change.
Build an initial model and explanation for: How can energy changes be combined across reaction pathways?
Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: bond energy; Hess's law; state function; pathway.
Study and explain the week's core ideas: bond energy; Hess's law; state function; pathway
Open text on Hess's law and bond energy.
Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.
Combine thermochemical equations and estimate ΔH.
Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: How can energy changes be combined across reaction pathways?
Hess-cycle card model and bond-energy calculation.
Use the course safety charter. If supervision, facilities, materials, or conditions are not appropriate, use the supplied-data/simulation alternative rather than improvising hazardous procedures.
Record variables or design constraints, procedure/model, observations/data, and one revision you would make after reviewing the evidence.
Answer the essential question: How can energy changes be combined across reaction pathways?
Submit a claim, at least two specific pieces of evidence, reasoning that connects them, one limitation/counterclaim, and a correction note for any essential concept below 80%.
Select one artifact from this week and explain why it is trustworthy evidence of growth.