Chemical Bonding Review - BLUEBIRD...
Transcript of Chemical Bonding Review - BLUEBIRD...
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Chemical Bonding Review
Objective
Review unit three’s topics in order to gauge which topics you should review most for your assessment next class.
SAT Prep Question
Of the Christmas tree smelling chemicals presented, what pattern do you notice between them that might be responsible for the tree smell?
Homework
• Test next class
• School ID’s
![Page 2: Chemical Bonding Review - BLUEBIRD CHEMISTRYbluebirdchemistry.weebly.com/uploads/5/3/4/6/53465321/... · 2019-09-28 · Chemical Bonding Review Objective Review unit three’s topics](https://reader033.fdocuments.in/reader033/viewer/2022050312/5f743eaa2faf1833767d50fb/html5/thumbnails/2.jpg)
![Page 3: Chemical Bonding Review - BLUEBIRD CHEMISTRYbluebirdchemistry.weebly.com/uploads/5/3/4/6/53465321/... · 2019-09-28 · Chemical Bonding Review Objective Review unit three’s topics](https://reader033.fdocuments.in/reader033/viewer/2022050312/5f743eaa2faf1833767d50fb/html5/thumbnails/3.jpg)
Of the Christmas tree smelling chemicals presented, what pattern do you notice between them that might be responsible for the tree smell?
![Page 4: Chemical Bonding Review - BLUEBIRD CHEMISTRYbluebirdchemistry.weebly.com/uploads/5/3/4/6/53465321/... · 2019-09-28 · Chemical Bonding Review Objective Review unit three’s topics](https://reader033.fdocuments.in/reader033/viewer/2022050312/5f743eaa2faf1833767d50fb/html5/thumbnails/4.jpg)
Chemical Bonding Review
Objective
Review unit three’s topics in order to gauge which topics you should review most for your assessment next class.
SAT Prep Question
Of the Christmas tree smelling chemicals presented, what pattern do you notice between them that might be responsible for the tree smell?
Homework
• Test next class
• School ID’s
![Page 5: Chemical Bonding Review - BLUEBIRD CHEMISTRYbluebirdchemistry.weebly.com/uploads/5/3/4/6/53465321/... · 2019-09-28 · Chemical Bonding Review Objective Review unit three’s topics](https://reader033.fdocuments.in/reader033/viewer/2022050312/5f743eaa2faf1833767d50fb/html5/thumbnails/5.jpg)
![Page 6: Chemical Bonding Review - BLUEBIRD CHEMISTRYbluebirdchemistry.weebly.com/uploads/5/3/4/6/53465321/... · 2019-09-28 · Chemical Bonding Review Objective Review unit three’s topics](https://reader033.fdocuments.in/reader033/viewer/2022050312/5f743eaa2faf1833767d50fb/html5/thumbnails/6.jpg)
Bonding
Properties
Bonding
Type
Identification
Lewis Dot
Structures
Molecular
Shapes
Polarity,
Electro-
negativity,
Intermolecular
Forces
Hodgepodge
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What determines the chemical
properties of an element?
A. atomic number
B. number of electron shells
C. number of valence electrons
D. physical state at room
temperature
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Four different solids were tested for conductivity. Each
solid was then placed in a crucible and heated until it
melted. The melting point and conductivity for each
melted sample were measured?
Which solid displays the properties of an ionic
compound?
A. Solid A
B. Solid B
C. Solid C
D. Solid D
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Which of the follow is a property of a
metallic bond?
A. Malleable
B. Gas at room temperature
C. Doesn’t conduct
D. Dissolves in water
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Which of the following is a property
of an ionic bond?
A. Conducts as a solid
B. Consists of metal and nonmetal
atoms
C. Doesn’t dissolve in water
D. Liquid at room temperature
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Which of the following is a property of
a network covalent bond?
A. Consists of metal and nonmetal
atoms
B. Dissolves in water
C. Conducts when dissolved
D. Very hard solid
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What type of bond forms between potassium and bromine?
A. hydrogenB. ionicC. nonpolar covalentD. polar covalent
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What type of bond forms between oxygen and fluorine?
A. covalent
B. hydrogen
C. ionic
D. metallic
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What type of bond forms as the
result of electron sharing?
A. covalent
B. intermolecular
C. ionic
D. metallic
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What type of bond forms as the
result of electron taking?
A. covalent
B. intermolecular
C. ionic
D. metallic
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Elements form chemical bonds because
their atoms have _________.
A. too many electrons
B. more protons than electrons
C. complete inner electron shells
D. incomplete outer electron shells
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Which is the correct Lewis dot structure for the oxygen atom?
A. A
B. A
C. A
D. z
O
O
O
O
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Which is the correct Lewis dot
structure for hydrogen chloride
(HCl)?
A. A
B. T
C. X
D. Z
Cl
Cl
Cl
Cl
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How many single covalent bonds are in a
molecule of methane, CH4?
A. 1
B. 2
C. 3
D. 4
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How many single covalent bonds are
in a molecule of phosphorus
trichloride, PCl3?
A. 1
B. 2
C. 3
D. 4
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How many electrons are shared in the double bond between the two oxygen atoms?
A. 8
B. 4
C. 2
D. 1
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How many nonbonding domains are there in the hypothetical molecule (XY3)?
A. 1
B. 2
C. 3
D. 4
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According to VSEPR Theory, which of these determines the shape of a molecule?
A. number of atoms in the molecule
B. number of polar covalent bonds
C. number of valence electrons
around the central atom
D. number of bonding and non-
bonding electron pairs
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What is the predicted shape of a molecules of XY3?
A. trigonal planar
B. tetrahedral
C. pyramidal
D. bent
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Which of these diagrams is consistent with the predicted shape of a molecules of H2S?
A. 90°
A. 107°
A. 120°
A. 180°
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What is the bond angle between the terminal atoms?
A. 90°
B. 107°
C. 120°
D. 180°
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Which of the following pairs of
atoms forms the most polar bond?
A. H, Si
B. H, Cl
C. H, H
D. H, S
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Which diagram accurately shows the
hydrogen bonding that occurs
between two water molecules?
A. Negative
B. No charge
C. Positive
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Which of these attractions is the
weakest?
A. covalent bond
B. hydrogen bond
C. ionic bond
D. Van der Waals forces
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The Lewis dot structures of methane (CH4) and
methyl chloride (CH3Cl) are given below.
Which of these statements describing the
polarity of the molecules is true?
A. CH4 is a polar molecule, CH3Cl is a nonpolar
molecule
B. CH4 is a nonpolar molecule, CH3Cl is a polar
molecule
C. CH4 and CH3Cl are both nonpolar molecules
D. CH4 and CH3Cl are both polar molecules
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Which of these is a nonpolar moleculecontaining polar bonds?
A. )
A. )
A. )
A. s
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What is the molecular formula of the compound shown below?
A. C5H8O
B. C5H8O2
C. C4H8O
D. C5H10O
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If the electronegativity difference between two atoms is extremely large, what type of bond will they form?
A. ionic
B. polar covalent
C. nonpolar covalent
D. nonpolar ionic
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Based on the position of the elements on the periodic table, which of these compounds should have chemical bonds that are the most polar?
A. LiCl
B. KCl
C. MgCl2
D. BaCl2
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Arsenic has 5 valence electrons. Predict the shape of a molecule of AsH3?
A. trigonal planar
B. pyramidal
C. tetrahedral
D. bent
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What type of molecular representation is shown below?
A. Lewis dot diagram
B. Structural formula
C. Molecular formula
D. Ball-and-stick model
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Lewis Dot
Structures
&
Polarity
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A student from Chef B’s class spills cooking oil on her new shirt. She knows from chemistry class that an oil molecule is nonpolar. She knows a nonpolar liquid solvent is needed to remove the stain. The liquids available in the classroom are carbon tetrachloride, CCl4, and water, H2O.
Which liquid solvent should she use to remove the oil stain? Justify your answer. Be sure to include: a) the Lewis dot structures for both molecules b) an explanation of how the shape and symmetry of each
molecule influences its polarity c) the name of the liquid solvent that will remove the stain d) justification (explanation) for your choice of the liquid
solvent that will remove the stain
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a) The Lewis dot structures for both molecules
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b) An explanation of how the shape and symmetry of each molecule influences its polarity
The electrons being shared by the elements in CCl4 are being done so equally, resulting in a nonpolar molecule with polar bonds.
The electrons in water are attracted to the electronegative oxygen, which results in a partial negative on the oxygen and a partial positive on the hydrogens.
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C. The name of the liquid solvent that will remove the stain
Carbon tetrachloride
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d) Justification (explanation) for your choice of the liquid solvent that will remove the stain
The oil stain is nonpolar, so a nonpolar solvent that will mix with it will be required to remove the stain.