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Films and Documentaries
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The aim of the program is to illustrate the chemical and physical properties of acids and bases. Describing the use of common acids and bases found in the home gives students a contextual framework from which to develop their knowledge and understanding.
All matter in the observable universe-from a single blade of grass to a planet in a faraway galaxy-is made up of atoms, molecules, and compounds. This program introduces these minuscule building blocks in five sections: The Nucleus (protons and neutrons, energy shells, binding energy, fission and fusion); The Electrons (quantum numbers, spdf orbitals); The Elements (periodic table, valence electrons, ions and ionization energy, electronegativity, covalent and ionic bonds); The Energy of Atoms (exothermic and endothermic reactions, spontaneous reactions, Gibbs free energy, activation energy, catalysts); and Common Compounds (properties of sodium chloride and water, polarity).
Chemistry is not all about books full of equations or experiments in a laboratory full of glass tubes. You experience chemistry far more than you might imagine. How does chemistry come into play in our everyday lives? How do plants and animals use chemistry for survival? This program will answer these questions and more! Plus, explore the chemistry of food, paints, sunblock, emulsion photography, photosynthesis, and even love. Be prepared to discover that life is pure chemistry!
Future problems of energy, food, medicines and materials are the problems of chemistry. No science is more at the core of every technology that supports the seven billion people living on the planet today than chemistry. Core chemistry presents how each branch of chemistry - physical chemistry, organic chemistry and biochemistry - evolved from a clear understanding of the principles and laws of chemical interactions.
This program uses the idea of filling electron shells to explain the formation of cations and anions. Electrostatic forces are then used to explain lattice formation, and the relationship between properties and structure is examined. Ionic bonding is introduced by comparing the malleability of silver with the brittleness of rock salt. Demonstrations include the formation of sodium and chloride ions from their respective atoms. Lattice formation is explained in terms of electrostatic repulsion and attraction. Models of different lattice structures are illustrated and explained in terms of the relative sizes of ions.
How can the particle model account for what happens when two clear liquids are mixed together and they produce a milky-white solid? What happens when iron rusts? Where do the elements come from? In this session, participants extend the particle model by looking inside the particles, learn about some early chemical pioneers, and in the process discover how the law of conservation of matter applies even at the scale of atoms and molecules.
Now turn to entropy, which is a measure of disorder. According to the second law of thermodynamics, the entropy of closed systems always increases. See how this change can be calculated in chemical reactions by using the absolute entropy table.
This Science Screen Report uses experiments and everyday phenomena to explore the properties of matter and how physical forces cause state changes at the boiling, melting, freezing, and dew point. The program also demonstrates how different states of matter can be combined in suspensions and solutions and how such mixtures can be separated into their components. Applied chemistry is spotlighted in the areas of food manufacturing and water desalination. Produced in association with the Accreditation Board for Engineering and Technology and the Junior Engineering Technical Society.
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