Slide 1 Enthalpies of Formation The enthalpy of formation,  H f, or heat of formation, is defined as the change in enthalpy when one mole of a compound is formed from…

Slide 1 Stoichiometry Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations Slide 2 Stoichiometry Anatomy of a Chemical Equation CH 4 (g) + 2 O 2 (g)…

Slide 1 METALS The metals, which are used in construction, mainly divided into two groups. FERROUS METALS – Cast Iron – Wrought Iron – Steel NONFERROUS METALS – Aluminium…

Slide 1 Learning Outcomes Historical outline of radioactivity: work of Becquerel (discovery of radiation from uranium salts); Marie and Pierre Curie (discovery of polonium…

Slide 1 Mathematics of Chemical Formulas Slide 2 Formula Weights Slide 3 Formula Weight (FW) Sum of the atomic weights for the atoms in a chemical formula So, the formula…

Slide 1 METALLIC MATERIALS MATERIAL SCIENCE AND METALLURGY Slide 2 Classification of Metallic materials Metals/Alloys Ferrous Non-Ferrous Steel Cast iron Low carbon Medium…

Slide 1 Stoichiometry Law of Conservation of Mass “We may lay it down as an incontestable axiom that, in all the operations of art and nature, nothing is created; an equal…

Slide 1 Climate Change and Extreme Weather Kerry Emanuel Department of Earth, Atmospheric, and Planetary Sciences, MIT Slide 2 This Evening’s Program Overview of climate…

Slide 1 PRACTICE EXERCISE Write balanced chemical equations for the following reactions: (a) Solid mercury(II) sulfide decomposes into its component elements when heated.…

How do we know what our climate was like thousands of years ago? Ice Cores Scientists collect a cylindrical section of ice from a glacier or an ice sheet Chemical analyses…