1 Elements - the building blocks of chemistry , 1 2 Atoms in Chemistry , 29 3 Chemical Reactions , 58 4 Inside the Atom , 82 5 Atoms Joining Together , 110 6 Metals , 137 7 Acids , 195 8 Sulphuric Acid - the most important chemical in industry , 222 9 Carbon , 246 10 Energy in Chemistry , 317 11 Silicon , 340 12 Nitrogen & Other Elements Important to Life , 355 …