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Chemistry OCR A
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Question 36
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Which enthalpy change(s) is/are endothermic?
The standard enthalpy of atomisation of calcium
The lattice enthalpy of formation of calcium oxide
The second electron affinity of oxygen
A
1, 2 and 3
B
Only 1 and 2
C
Only 1 and 3
D
Only 2 and 3
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