chapter 4 Flashcards

1
Q

chemical bond

A

the attractive forceds that hold elements together

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2
Q

why do bonds form

A

bonds form because the atoms are of lower potential energy when they are separate

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3
Q

ionic bond

A

occur between a metal and a nonmetal

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4
Q

covalent bond

A

the mutually stabalizing sharing of valence electrons between nonmetals

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5
Q

molecules

A

compounds arising from atoms witth covalent bonds

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6
Q

molecular formula

A

the exact ratio of the elements without simplification

ex h202

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7
Q

structural formula

A

the lewis diqagram

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8
Q

empirical formula

A

the ratio of the elements with simplification

ex HO

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9
Q

polyatomic ionm

A

a compound composed of covalent bonds that has a charge

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10
Q

naming metals

A

they havbe name (III)

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11
Q

mass % of X given the compound

A

((number atoms x)(X molar mass))/total molar mass

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12
Q

nonpolar covalent

A

equal shairing of bonding electrons

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13
Q

polar covalent

A

unequal sharing of electrons

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14
Q

dipole moment

A

cross arrow pointing twoards more electronegative

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15
Q

dif EN 0-.4

A

covalent

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16
Q

dif EN .4-1.9

A

polar covalent

17
Q

dif EN 2.0+

A

ionic

18
Q

dashed lines

A

into the paper

19
Q

normal line

A

on paper plane

20
Q

wedge

A

at you

21
Q

determine an empirical formula from % compositon

A

make them whole numbers