This hardcover has been gently read. It is an ex-library copy with the usual markings (mainly stickers, card pocket and stamp on the text block). The binding is library binding and is tight. The pages are clean, no writing or coloring. How did the universe begin? How does hydrogen keep the sun hot? What does hydrogenated mean? Find out the answers to these and other fascinating questions in Hydrogen. This book explores the amazing sequence of events that led to the formation of hydrogen and how it is the building block of the universe. It describes hydrogen and how it is the building block of the universe. It describes hydrogen's discovery, properties, and its huge potential as an energy resource. Water, hydrogen's most important compound, is looked at in many context. This book clearly explains the differences between acids and alkalis and covers their various uses. It examines the huge family of hydocarbons, as well as the special nature of hydrogen bonds. Each book in The Periodic Table series explains the elements in one of more groups. The physical and chemical trends within and between the groups are examined. Each book explores key properties and describes important applications that make a difference in our daily lives. Features includes: full-color illustrations of the periodic table chemical formulas for common compounds labeled diagrams and clear illustrations equations for chemical reactions timelines charting the history and discovery of the elements – From the back of the book b-439