Different chemicals and different methods of analysis are used in each laboratory. Such a fact does not make it easy to provide a standard guideline for working in the laboratory in a safe and environmentally friendly manner. This book helps the reader to better assess the risks that they may come across in their own unique situation, and to take suitable precautionary measures. An approach focused on sources is a central component of this effort. With the proper approach and common sense, ea...

Get a true understanding of the essential concepts in Biology with trusted content that sets the standards for excellence, accuracy, and innovation. Biology: A Global Approach, Global Edition, 12th Edition is the latest version of the ultimate text in the field coming from a leading team of authors, advancing Neil Campbell's vision of delivering an accurate and pedagogically innovative experience. This latest version reflects the most recent developments in the field, with hallmark and new fe...

For courses in chemistry. Nivaldo Tro's Chemistry: A Molecular Approach presents chemistry visually through multi-level images-macroscopic, molecular, and symbolic representations ? to help students see the connections between the world they see around them, the atoms and molecules that compose the world, and the formulas they write down on paper. Interactive, digital versions of selected worked examples instruct students how to break down problems using Tro's unique "Sort, Strategise, Solve,...