CHEM 1010 week 8 notes
CHEM 1010 week 8 notes CHEM 1010
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This 2 page Class Notes was uploaded by Chase Bobier on Saturday March 12, 2016. The Class Notes belongs to CHEM 1010 at Middle Tennessee State University taught by Tammy J Melton in Fall 2015. Since its upload, it has received 23 views. For similar materials see Introductory General Chemistry I in Chemistry at Middle Tennessee State University.
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Date Created: 03/12/16
Chase Bobier CHEM 1010 notes week 8 Important Terms Things you need to know Equations and Calculations The mole (abbreviated mol) is a way of being able to accurately know how many atoms of an element or molecules of a compound are contained in a sample. A mole is 6.02x10 23items, and is an elements atomic weight in grams. 1 mol Zing = 6.02x10 23Zinc atoms = 65.39 g Zinc. If I have 2.5 mol of B and I wanted to know how many grams that was, here is how I would do that. 2.5molB 10.811gB x =27.0gB 1 1molB Chemical Equations Chemical equations are the ‘sentences’ of chemistry that represent chemical reactions. The Law of Conservation of Matter: ‘Matter is neither created or destroyed in an ordinary chemical reaction.” In a chemical equation you have the reactants (or elements and compounds you began with) on the left, and the products (the elements and compounds you are left with after the reaction) on the right, with the yields symbol → ) ¿ in between. 5 common chemical reactions 1) Combination (synthesis): A+B→ AB 2) Decompisition : AB→ A+B ABC→ AB+C 3) Single Replacement: A+BC→ AC+B 4) Double Replacement: AB+CD→AD+CB HydrocarbonFuel+O →C O +H O 5)Combustion: 2 2 2
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