MAKING CHEMISTRY INTERESTING - I am in grade 7, 8 or 9 and feel chemistry is not my kind of subject - I am trying to figure out why are valencies so important - I wonder why water is H2O and not H2O2, sodium chloride NaCl and not NaCl2 - I am struggling to understand why reactions take place - I feel remembering and balancing equations are the worst part of chemistry -I find mole concept to be the toughest topic in chemistry - LOOK NO FURTHER – THIS BOOK IS READY TO PROVIDE ALL ANSWERS TO YOUR ENDLESS QUERIES AND DOUBTS ABOUT CHEMISTRY!