What are polyamides? Polyamides are polymers where the repeating units are held together by amide links. An amide
Category: GCE A-level Chemistry
Reaction Kinetics introduction
Introduction Rate of a reaction: change in concentration of reactants or products per unit time Activation energy: minimum energy colliding
Qualitative Analysis of Group III Ions
Reaction of Manganese Mn2+
Reaction of Manganese, Mn2+ Color : pale pink, almost colourless Test Observations Notes Add NaOH(aq) An off-white ppt
Reaction of Cr3+
Reaction of Cr3+ Its colour is green. A solution of Cr3+ is commonly provided in form of CrCl3(aq).
reaction-of-iron-fe2-and-fe3
Reaction of iron(ii), Fe2+ Colour : pale green, almost colourless. Test Observation Notes Add H2O2 Then add
Reaction of Copper
Reaction of Copper, Cu2+ Cu2+(aq) (pale blue) 1ons can be obtained b Dissolving a solub1e copper (II) salt
Qualitative Analysis Invariably involves detection or identification of cation(s) and or anion(s) present in given test substance in
Reducing Agents
Reducing Agents Commonly used reducing agents include; KI-iodides; Sodium thiosulphate -thiosulphate ions Potassium Iodide, KI I–(aq) is oxidized