chemistry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| When an s electron is promoted to an empty p orbital forming new equivalent orbitals.? | Orbital hybridization
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| Orbital hybridization is used to? | create equal bonding sites that require all equal amounts of energy.
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| Creates 2 bonding sites? | SP hybridized
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| creates 3 bonding sites? | sp^2 hybridized
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| creates 4 bonding sites? | SP^3 Hybridized
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| Vespr theory stands for? | Valence shell electron pair repulsion theory
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| what does the vespr theory state? | it states the 3-d shape of the bonds and atoms in a molecule. based on the fact that negative charges repel one another.
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| The repulsion of the negative regions of a molecule create? | specific 3-d shapes
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| negative regions : | Lone pair of electrons, a simple, double, or triple bond.
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| Lone pairs and bonds will move as far a part as possible? true or false? | True!!!! :)
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| Practice your Lewis structures,Kyle! | No you robot! you don't control me!...
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| Are sigma bonds stronger than pie bonds? | yes
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| disadvantages of lewis structures? | they do not show 3-d shape
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| Valence Bond theory? | Covalent bonds are formed when different atoms overlap.
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| Sigma bond? | Bond formed by orbitals that overlap directly between the nuclei of the atom
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| Pi bond? | Bond formed by orbitals that overlap above and below the nuclei of 2 atoms
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| single bond =? | one sigma bond
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| double bond? | one sigma and one pie bond.
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| triple bond? | one sigma and 2 pie bonds.
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| What bond is the strongest? | triple bond
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| instead of oscillating between 2 possible bond configurations, the bonds take on an intermediate character. | Resonance
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| Octet exception 1. | molecules with an odd number of valence electrons.
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| octet exception 2. | some elements are content with fewer than 4 pairs of electrons ex. boron likes 6
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| octet exception 3. | more than 8 valence electrons can be shared with a central atom.
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| Molecular orbital theory? | orbitals are replaced by totally new orbitals when molecules are formed.
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| what are anti bonding orbitals? | they consist of electrons that interfere with each other and they require more energy then atomic orbitals.
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| A central atom surrounded by 4 electron regions? (shape)? | Tetrahedral
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| A central atom surrounded by 3 electron regions? | Trigonal Planar
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| A central atom surrounded by 2 electron regions? | Linear
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| a central atom surrounded by 3 bonds and a lone pair of electrons? | Pyramidal
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| A central atom surrounded by 2 bonds and 1 or 2 pairs of electrons? | Bent
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| Do bonds in diatomic molecules have polarity? | No!
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| Bonds where electrons are not shared equally are called? | Polar covalent bonds
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| Review : Bonds between elements are partially? | ionic and covalent
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| Partial charges are shown with what symbol? | lower case delta
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| In general symmetric molecules are non-polar while asymmetrical molecules are polar? | true!
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| Bent and pyramidal always produce polar molecules when they contain polar bonds? | yes.
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| Tetrahedral,Trigonal planar,and linear are ----?. If their outer atoms are different they are ----?? | non-polar;polar
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| The size and direction of a molecules total polarity? | Dipole moment
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Created by:
Kyle Witt
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