Chemistry PapaPodcasts
Summary: The following video podcasts are science concepts based on Science Curriculum with a focus on the Chemistry unit on the Periodic Table, Naming Chemicals and Writing Formulas, Balancing Equations and Identifying Different Types of Reactions. These lessons are to be downloaded to your computer for assistance in homework or reviewing older material just prior to your final examination in the course. Mr. Papadimitriou is a high school Science/Math/Credit Recovery teacher in Scarborough, Ontario, Canada. I am presently looking for any sponsorship or financial aid for my high school as we are steering towards being designated an M.S.T School (Math/Science/Technology). Any addition assistance, comments and donations, contact Mr. P at papapodcasts@gmail.com
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Podcasts:
1.03 - The Elements - 25:11
1.01 - Developing the Atomic Theory - 25:27
1.02 - Discovering Inside the Atom - 32:04
Factor Labelling - 10:01
KEY CONCEPTS: 2 or more reactant --> 1 product metal oxide + water --> base (bases contain an OH-) non-metal oxide + water --> oxy-acid (oxy-acid is a polyatomic with a hydrogen acting as a cation) - see what type of polyatomic comes to mind when you look at the non-metal oxide
KEY CONCEPTS: 1 reactant --> 2 or more products metal hydrogen carbonate --> metal carbonate + CO2 + H2O (the metal can be any of the metals to the left of the aluminum ladder combined with a hydrogen carbonate. The end products are CO2 and H2O along with the metal bonded to the carbonate) i.e: NaHSO4 --> Na2SO4 + CO2 + H2O
KEY CONCEPTS: When naming Binary Acids, start by identifying the hydrogen atom as "hydro" and name the non-metal using the "ic" ending and add the word acid. Rules for Oxy-Acids: They are derivatives of polyatomic ions and polyatomic variations. Follow the following 4 rules: i.) ____ate ions become _______ic acid ii.) per____ate ions become per_____ic acids iii.) ____ite ions become _____ous acids iv.) hypo____ite ions become hypo_____ous acids Bases contain hydroxide ion (OH)-1 **NOTE: NO "hydro" for oxy-acids
KEY CONCEPT: When you combine a metal and a non-metal, use the 5 Step Cross over Rule to put together your formula
KEY TERMS: balance both sides of the equation by placing a number (coefficient) in front of the compound. Don't be afraid to have to change that number if it does not completely balance the equation. Balance polyatomic ions first. Remember that REACTANTS are to the left of the arrow and PRODUCTS are to the right of the arrow. Refer to episode on "Counting Atoms". Don't forget your diatomic molecules: oxygen = O2 hydrogen = H2 bromine = Br2 chlorine = Cl2 iodine = I2 fluorine = F2 nitrogen = N2
Valence electrons
4.01 - Counting Atoms - 13:05
KEY TERMS: 2 or more non-metals Prefixes: mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca
KEY TERMS: 2 or more non-metals, Nick the Camel ate a Clam for Supper in Phoenix, "ate" ending Underlined letter represents the atom # of consonants = # of oxygens # of vowels = # of negative charges associated with polyatomic Ending is "ate" - except for ammonium ion and hydroxide ion 5 Step Cross over rule: - Remember that polyatomic has brackets and the charge is written outside of the brackets - remove brackets when the number outside of the brackets is a "1"javascript:void(0)
KEY TERMS: reverse cross over rule, metal, non-metal
KEY TERMS: transition metals, Classical system, Stock system, Latin names, Roman numerals, cross over rule, reverse cross over rule "ic" ending = higher charge "ous"ending = lower charge
