AS Chemistry Quiz 2.0 / 5 based on 1 rating ? ChemistryASEdexcel Created by: Basil PauloseCreated on: 02-12-12 14:01 What is the 2nd stage of free radical substitution known as? Propagation 1 of 6 What is dative bonding? When 1 atom donates 2 electrons to form a covalent bond with the other atom 2 of 6 What is the the definition of Standard enthalpy of atomisation? The enthalpy change when all bonds in a substance are broken under standard conditions 3 of 6 What does Hess's Law state? The enthalpy change accompanying a chemical change is independent of the route by which the chemical change occurs. 4 of 6 What energy is put in during the initiation of free radical substitution? UV light 5 of 6 In a mass spectrometer what is the stage called where the atoms are ionised? Bombardment 6 of 6
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