CC15 Heat energy changes in chemical reactions personal learning checklist
GCSE Edexcel Combined Science · Chemistry Paper 2
Name ____________________ Class __________ Date __________
Tick one box per statement. Red: need help. Amber: partly confident. Green: can do independently.
| I can | Red | Amber | Green |
|---|---|---|---|
| Heat transfers and measurements | |||
| Distinguish exothermic and endothermic changes using energy transfer, temperature evidence and examples. | |||
| Describe an insulated temperature-change experiment with controlled reagents, consistent measurements and safe handling. | |||
| Calculate signed temperature changes and explain heat-exchange and measurement limitations. | |||
| Reaction profiles | |||
| Draw and interpret exothermic and endothermic profiles with labelled energy, progress, activation energy and overall change. | |||
| Explain why exothermic reactions still need activation energy and compare forward and reverse barriers. | |||
| Explain catalyst effects on reaction profiles without changing reactant levels, product levels or overall energy change. | |||
| Bonds and net energy | |||
| Explain energy absorption in bond breaking and release in bond formation. | |||
| Explain overall exothermic or endothermic change by comparing the two bond-energy totals. | |||
| Calculations (Higher) | |||
| Count bonds using balanced coefficients and calculate signed energy changes from supplied bond energies (Higher). | |||
| Adjust energy changes to the requested reaction amount and explain limitations of average bond energies (Higher). | |||
Next revision priority: __________________________________________________