chemistry tips
1. empirical formula ( precaution/draw apparatus/observation/calculation)
2.periodic table
3.carbon compound(alkane,alkene,alcohol)
4.salt
5.redox &electolysis(define term)
6.soap n detergent (how to make /advantages &disadvantages)
7.contact n haber process
8.thermochemis
section B
1.soluble n insoluble salt(anion n cation)
2.rate of reaction
3.ionic & convalent compound
4.combination of either alloy ,glass,polymer or rubber polymer &vulcanisation
paper 3
experiment
voltaic cell