13 papers included CHEMISTRY NOTES CHEMISTRY NOTES 8.4.4 Notes Included papers13 files 1.3 Acids, Bases and Indicators8.4.4 2.2 Chemical families8.4.4 2.5 EFFECT OF AN ELECTRIC CURRENT ON SUBSTANCES8.4.4 3.2 The Mole8.4.4 3.4 Nitrogen and its Compounds8.4.4 3.5 Sulphur and its Compounds 8.4.4 4.1 Acids, Bases and Salts8.4.4 4.4 Electrochemistry8.4.4 4.5 Metals8.4.4 4.6 Organic Chemistry 28.4.4 4.7 Radioactivity8.4.4 Effect of electro current on Substances8.4.4 Reactions Rates and Reversible reactions8.4.4