1. พันธะเคมีChemical bonding 2. สารต่างๆ ในธรรมชาติอาจอยู่เป็นโมเลกุลหรือผลึก…

Slide 1 Spontaneity & Entropy Unit 3 - Thermodynamics Slide 2 Spontaneity In chemical terms, a spontaneous reaction is a reaction that occurs on its own. Speed is not…

Slide 1 Hess’s Law EQ: Why is Hess’s Law a useful tool in solving for ∆Hrxn? Slide 2 Analogy for Hess's Law There is an old Chinese proverb which says: There are…

Slide 1 Hilary Beutler, Lacey Kloster, Cassie Loren Slide 2 Reaction Chemistry HCl(aq)+NaHCO 3 (aq)  H 2 O(l)+CO 2 (g)+NaCl(s) To Produce 4.5atm of pressure inside the…

Chemistry of Nonmetals * Dr.Riham Hazzaa Dr.Riham Hazzaa OXIDATION-REDUCTION REACTIONS A redox reaction involves the transfer of electrons between reactants Electrons gained…

Energetics and Enthalpy Changes · All physical and chemical processes involve the energy changes. · The variations in the strengths of forces of attraction (like intermolecular…