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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 total number of atoms in the compound.
    The number of atoms of that element in the compound.
    The number of different elements in the compound.
    The number of valence electrons in the element.
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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 electrons.
    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 atoms in the molecule.
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  • If a polyatomic ionic compound has gained two hydrogen ions, such as H2 PO4 -. How does its name begin?
    Hydrogen
    Dihydrogen
    Hydrogen (II)
    Hydrous
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  • In larger atoms, why can outer electrons move more freely?
    atoms have more protons, which means more electron moves
    no answer
    Larger atoms have more electrons, atom less stable
    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
    3
    1
    5
    2
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  • Which of the following is an example of an ionic compound?
    O3
    Na
    CO2
    NaCl
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  • Why must we consider a molecule's shape when determining its polarity?
    Symmetrical molecules are always non polar.
    A molecule may have different shapes depending its polarity
    Non polar molecules have dipoles that do not cancel out
    The shape reveals more about distribution of charge.
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  • How many valence electrons are in a carbon dioxide (CO2) molecule?
    16
    8
    12
    24
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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?
    109.5o
    180o
    90o
    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.
    Add the missing electrons.
    Leave it as it is.
    Make a resonance structure.
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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 mass.
    The element's row number.
    The element's atomic number.
    The element's group number.
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  • Identify the atom that is likely to have the highest electronegativity.
    Non-metal selenium, atomic number 34
    Metal beryllium, atomic number 4
    Non-metal oxygen, atomic number 8
    Metal magnesium, atomic number 12
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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 electrons in the atoms don't share orbitals.
    Bonding takes place.
    The chemicals don't react.
    The atoms don't bond.
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  • What is an example of a naturally occurring inorganic macromolecule?
    Sucrose
    Diamond
    Nucleic Acid
    Glucose
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  • How does an atom try to achieve a complete valence shell?
    All answers are correct.
    By giving away electrons.
    By adding electrons.
    By sharing electrons.
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  • Why are metals shiny?
    Because they absorb light photons.
    Because they can be polished to a high gloss.
    Because they reflect light photons.
    Because they have mobile protons.
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