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Home Page Flashcards Dr. Roberts Chemistry 122 Test Chapters 4 & 5 - Flashcards

Dr. Roberts Chemistry 122 Test Chapters 4 & 5 – Flashcards

Christine Brunetti
7 July 2022

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Ionic Compounds

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M + NM

 

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Subscript

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Ratio of combination

must give compund w/ zero charge

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Covalent Nomenclature

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NM + NM

binary

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Mono

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One

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Di

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Two

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Tri

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Three

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Tetra

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Four

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Penta

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Five

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Hexa

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Six

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Hepta

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Seven

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Octa

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Eight

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Nona

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Nine

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Deca

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Ten

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How do we check for octets in a Lewis structure?

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Count the valence electrons to see if there are 8

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Electronegativity

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Ability of atom to attract e-'s in covalent bound

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Electronegativity = Small (0 - 0.4)

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Covalent

NM + NM

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Electronegativity 0.4 - 1.7

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Polar Covalent

NM + NM

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Electronegativity ; 1.7

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Ironic

M + NM

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Name

N2O

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dinitrogen monoxide

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NO2

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Nitrogen dioxide

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Al2(SO4)3

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Aluminum sulfate

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P4O10

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Tetraphosphorus Decaoxide

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Li2O

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Lithium Oxide

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Formula

Iodine tricholoride

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ICl3

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Formula

Calcium nitride

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CaN2

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Formula

Carbon monoxide

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CO

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Trend for electronegativity

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nonmetals have high electronegativity

metals have low

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Which element is most electronegative?

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Fluorine

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Where can the least electronegative elements be found?

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On the left of the periodic table

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Most likely charge for an ion formed from calcium is?

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+2

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compound fromed from hydrogen and bromine is expected to be an _____ compound?

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Covalent

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Carbon has a _____ electronegativity then Oxygen?

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Lesser

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What are products of complete combustion of hydrocarbon?

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Carbon dioxide and water

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H2O is expected to be a ____ molecule?

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Bent

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In a balanced chemical equation the total number of moles of reactants _____; have to equal to the total number of moles of products

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dosn't

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the carbon chlorine bond in carbon tetrachloride is expected to be _______

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polar

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% Yield

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= actual yield/theoretical yield x 100%

 

 

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Combination Reactions

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two or more elements or simple compounds bond together to form one product.

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Decomposition Reactions

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splits two or more simpler products

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Oxidation - Reduction

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definded as reactions with a loss and a gain of e-'s among the reactants.

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Metals lose e-'s

Nonmetals gain them

 

 

 

 

 

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Single displacement

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reacting element switches place with an element in the other reacting compound.

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Double displacement

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positive ions in the reacting compunds switch places.

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What is a hydrocarbon

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organic compounds consisting of only carbon and hydrogen

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