Chemistry – Year 12 Christmas definition list

1. Acid

2. Addition reactions

3. Alkali

4. Anhydrous

5. Atom economy equation

6. Atomic orbital

7. Base

8. Covalent bond

9. Concordant results

10. Curly arrows in reaction mechanisms

11. Dative covalent bond

12. Disproportionation

13. Electronegativity

14. Elimination reactions

15. First ionisation energy

16. Heterolytic fission

17. Homologous series

18. Homolytic fission

19. Hydrated

20. Hydrogen bonding

21. The ideal gas equation (including units)

22. Ionic bonding

23. Limiting reagent

24. Localised electrons

25. London forces

26. Metallic bond

27. Oxidising agent

28. Percentage yield equation

29. π-bond

30. Precipitation reaction

31. Qualitative analysis – the test for ammonium ions

32. Qualitative analysis – the test for carbonate ions

33. Qualitative analysis – the test for halide ions

34. Qualitative analysis – the test for sulfate ions

35. Radical

36. Reducing agent

37. Relative atomic mass

38. Relative isotopic mass

39. σ-bond

40. Salt

41. Second ionisation energy

42. Standard conditions

43. Standard solution

44. Stereoisomers

45. Strong acid

46. Structural isomers

47. Substitution reactions

48. Unsaturated

49. Water of crystallisation

50. Weak acid