Chemistry: Feb. 8-12
Chemistry: Feb. 8-12 Chemistry 1110-002
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This 2 page Class Notes was uploaded by Anzlee on Friday February 12, 2016. The Class Notes belongs to Chemistry 1110-002 at Middle Tennessee State University taught by Earl Pearson in Spring 2016. Since its upload, it has received 21 views. For similar materials see General Chemistry I in Chemistry at Middle Tennessee State University.
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Date Created: 02/12/16
Chemistry: February 8-12 Law of Conservation of Mass • the same number of each atom much be in the reactants and products of a chemical reaction • balancing equations (either by ‘guess and check’ or by using variables) *there is a set of practice equations on D2L to work out o example used in class: Nomenclature • Basics of naming compounds (unless hydrogen is present): o cations (metal) are named first o anions (nonmetals) are named after and the ending changes to “-ide” • Acids: o if anion ends in “-ide”, then it is said as “hydro-stem-ic acid” § example of ‘stem’: chlor § example: HCl= hydrochloric acid o if hydrogen is paired with a polyatomic ion, “hydro” is not used; they ar enamed from the anion § “-ate” changes to “-ic” § “-ite” changes to “-ous” § example: H SO = sulfuric acid 2 4 2 di- • Binary Molecular Compounds (all non-mentals): 3 tri- o the more metallic elements are named first 4 tetra- o prefixes may be used to signify how many there are: 5 penta- 6 hexa- o second elements ends in “-ide” 7 hepta- 8 octa- 9 nona- 10 deca- *For memorizing polyatomic ions, refer to the list posted on D2L Types of Reactions • Combustion: involve oxygen (O )2as a reactant and the other reactants will form their oxide • Decomposition: reaction breaks down (more products than reactants) • Combination: reaction synthesizes (more reactants than products) Periodic Properties of Elements • Metals: shine, malleable, good conductors of heat and electricity, varied melting points; form ionic oxides that can produce basic solutions; form cations when react • Metalloids: look like metals but have some non-metallic properties • Alkali metals are more reactive that alkali earth metals • Noble gases are very unreactive
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