| (a) Energetics (Content in blue is not required for Double Award Science) |
| 3.1 know that chemical reactions in which heat energy is given out are described as exothermic, and those in which heat energy is taken in are described as endothermic |
| 3.2 describe simple calorimetry experiments for reactions such as combustion, displacement, dissolving and neutralisation |
| 3.3 calculate the heat energy change from a measured temperature change using the expression Q = mc T |
| 3.4 calculate the molar enthalpy change ( H) from the heat energy change, Q |
| 3.5C draw and explain energy level diagrams to represent exothermic and endothermic reactions |
| 3.6C know that bond-breaking is an endothermic process and that bond-making is an exothermic process |
| 3.7C use bond energies to calculate the enthalpy change during a chemical reaction |
3.8 know how to investigate temperature changes accompanying some of the following types of change:
- salts dissolving in water
- neutralisation reactions
- displacement reactions
- combustion reactions
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Chemistry 