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46 Cards in this Set
- Front
- Back
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Covalent compounds have (Lower/Higher) Melting/Boiling points than ionic compounds.
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lower
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Covalent compounds are physically described as ______ or ______.
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soft or squishy
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Are covalent compounds flammable?
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yes
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Are covalent compounds soluble in water?
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no, most are not
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Covalent bonds are bonds shared between ______.
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two nonmetals
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Bond length (increases/decreases) when more bonds are added. Which is the shortest bond?
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decreases, triple
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As bond length decrease, bond strength ______.
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increases
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What are the four exceptions to the octet rule?
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H is full with 2 electrons
Be is full with 4 B is full with 6 expanded octets |
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Usually, the atom with the ________ electronegativity is the central atom
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lowest
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______ can NEVER be the central atom.
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Hydrogen
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_______ is when you can draw different Lewis Structures for the same molecule that are correct.
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resonance
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What do you have to do to the Lewis Structure when the molecule has a charge?
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put brackets and the charge number around it
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_________ is a type of covalent bond where the electrons are shared unequally
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polar covalent
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________ is a type of covalent bond where the electrons are shared equally
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nonpolar covalent
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If the difference is 0-0.4 the bond is ________
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nonpolar covalent
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When the difference is 0.5-1.7 the bond is ________
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polar covalent
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When the difference is 1.8+ the bond is ________
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ionic
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The _________ is indicated by an arrow drawn pointing towards the negative partial charge
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dipole moment
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VSEPR stands for
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Valence Shell Electron Pull Repulsion theory
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1 element
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Mono (can never be used on the first element)
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2 elements
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di
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3 elements
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tri
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4 elements
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tetra
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5 elements
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penta
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6 elements
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hexa
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7 elements
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hepta
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8 elements
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octa
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9 elements
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nona
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10 elements
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deca
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name for N2O5
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dinitrogen pentoxide
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sulfur tetraflouride
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SF4
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a chemical compound surrounded by water
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Hydrate
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CuSO4 . 5H2O
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Cupric sulfate tetrahydrate
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forces WITHIN a molecule
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intramolecular forces
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forces BETWEEN molecules
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intermolecular forces
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the melting and boiling points will be higher when the intermolecular force is (lower/higher)
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higher
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Ionic compounds form ________.
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crystals
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Physically, ionic compounds are ______ and ______
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hard and brittle
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Do ionic compounds conduct electricity?
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yes, when dissolved in water or when in a molten state.
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ionic bonding is between a ________ and a _______
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metal and nonmetal
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Lead (Pb) and Tin (Sn) both have charges of ___ and ___
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+2 and +4
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The first element in an acid is always ____!
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Hydrogen
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Binary acids are __________.
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acids without a polyatomic ion
and acids without oxygen |
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Ternary acids are _______.
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acids with a polyatomic ion
and acids with oxygen |
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If the polyatomic ion ends in ate, the acid will end in __.
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ic
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If the polyatomic ion ends in ite, the acid will end in __.
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ous
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