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26 Cards in this Set
- Front
- Back
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do you name ionic compounds using the roman numeral system?
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yes
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how do you name covalent compounds?
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using the di- tri- tetra-
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what is an ionic solid made up of?
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cations and anions
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what is a metallic solid made up of?
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metallic cations and delocalized electrons
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which bond is the longest and weakest?
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the single bond
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which bond is the shortest and strongest?
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the triple bond
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What is a bond angle between?
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the orbitals of a bonding atom
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what is electronegativity?
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the tendency of an atom to attract electrons in a bond
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What dissolves in a polar solvent?
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ionic and polar solutes
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what is the trend for electronegativity?
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period- increase
column- decrease |
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if the EN difference is greater than 1.7 then the bond is...
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ionic
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if the EN difference is less than 1.7 and greater than .4 then the bond is...
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POLAR covalent
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if the EN difference is less than .4 then the bond is...
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nonpolar covalent
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if the EN equals 1.7 then the bond is..
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50/50 covalent and ionic
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σ+1 is put next to...
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the less electronegative atom in a polar covalent bond
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why is metal malleable and ductile?
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an applied force causes the metal cations to move through the sea of delocalized electrons
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what is a sigma bond?
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a single covalent bond where the electron are shared in an area centered between tow atoms.
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what is a pi bond?
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formed when parallel orbits overlap to share electrons
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what number of sigma and pi bons does a double covalent bond have?
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1 σ and 1 pi
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what number of sigma and pi bons does a triple covalent bond have?
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1 sigma and 2 pi
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what does VSEPR stand for?
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Valence Shell Electron Pair Repulsion (they want to be as fair away from eachother as possible)
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what angle does a linear bond have?
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180
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what angle does a bent bond have?
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105
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what angle does a trigonal planar bond have?
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120
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what angle does a trigonal pyramidal have?
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107
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what angle does a tetrehedral have?
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109
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