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Chemical Bonding Review

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    Chemical Bonding for high school chemistry
  •   Study   Slideshow
  • When naming a binary covalent compound, what determines the prefix for an element in the compound?
    The number of atoms of that element in the compound.
    The total number of atoms in the compound.
    The number of valence electrons in the element.
    The number of different elements in the compound.
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  • In hybridization, how do you know how many hybrid orbitals are formed?
    It is the same as the total number of atoms in the molecule.
    It is the same as the number of valence electrons.
    It is the same as the number of orbitals that have combined.
    It is the same as the total number of electrons.
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  • If a polyatomic ionic compound has gained two hydrogen ions, such as H2 PO4 -. How does its name begin?
    Hydrogen (II)
    Hydrous
    Dihydrogen
    Hydrogen
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  • In larger atoms, why can outer electrons move more freely?
    no answer
    Larger atoms have more electrons, atom less stable
    atoms have more protons, which means more electron moves
    Electrons are in higher energy shells, less tightly held.
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  • How many elements of unsaturation does a molecule with this chemical formula have? C5H8
    2
    1
    3
    5
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  • Which of the following is an example of an ionic compound?
    Na
    O3
    CO2
    NaCl
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  • Why must we consider a molecule's shape when determining its polarity?
    The shape reveals more about distribution of charge.
    A molecule may have different shapes depending its polarity
    Non polar molecules have dipoles that do not cancel out
    Symmetrical molecules are always non polar.
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  • How many valence electrons are in a carbon dioxide (CO2) molecule?
    24
    8
    12
    16
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  • If a central atom of a molecule only has two electron domains, what is the bond angle associated with the molecule?
    90o
    109.5o
    180o
    120o
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  • When drawing Lewis dot structures, what should you do if you run out of electrons before all atoms are satisfied?
    Try double or triple bonds.
    Make a resonance structure.
    Leave it as it is.
    Add the missing electrons.
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  • What do you look at in the periodic table to determine the number of valence electrons possessed by an element?
    The element's atomic number.
    The element's atomic mass.
    The element's group number.
    The element's row number.
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  • Identify the atom that is likely to have the highest electronegativity.
    Non-metal selenium, atomic number 34
    Metal magnesium, atomic number 12
    Metal beryllium, atomic number 4
    Non-metal oxygen, atomic number 8
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  • What happens when both of the orbitals in a molecule are in phase, either both positive or both negative, and the electrons in the bonds are at their lowest energy level?
    The chemicals don't react.
    Bonding takes place.
    The electrons in the atoms don't share orbitals.
    The atoms don't bond.
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  • What is an example of a naturally occurring inorganic macromolecule?
    Diamond
    Glucose
    Nucleic Acid
    Sucrose
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  • How does an atom try to achieve a complete valence shell?
    By adding electrons.
    By sharing electrons.
    By giving away electrons.
    All answers are correct.
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  • Why are metals shiny?
    Because they reflect light photons.
    Because they can be polished to a high gloss.
    Because they have mobile protons.
    Because they absorb light photons.
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