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WorksheetsChapter 6 Sections 4 and 5 Test Review
Total questions: 42
Worksheet time: 21mins
In the three molecules, O2, and HCl, and F2, what atom would have a partial negative charge?
HCl
O2
F2
How many bonds and lone pairs are in H2O?
2,2
4,0
3,1
How many bonds and lone pairs are in CH2Cl2?
2,2
4,0
3,1
How many bonds and lone pairs are in NH3?
2,3
4,0
3,1
How many bonds and lone pairs are in CCl4?
2,2
3,1
4,0
What is an electron sea?
Electrons that surround a positively charged atom
Neutrons that surround a positively charged atom
Protons that surround a positively charged atom
To appear shiny, a material must be able to do what?
Absorb and reflect protons
Be in sunlight
Be in shade
Eat protons
The shiny appearance of a metal is most closely related to the metal's
highly mobile valence electrons
covalent bonds
brittle crystalline bonds
positive ions
What is malleability?
The ability to be shaped
The ability to be drawn into a wire
Why are metals malleable?
The electrons slide past each other and reposition themselves
The electrons vibrate in one spot
The electrons bounce around
Why are metals malleable and ionic crystals brittle?
Their chemical bonds
Their physical bonds
What is ductility?
The ability to be drawn into a wire
The ability to be shaped
What shape is CO2?
Linear
Bent
Trigonal Planar
Trigonal Pyramidal
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
Valence Shell Electron Pair Revolting
Valence Shell Electron Pair Repellent
Valence Shell Electron Pair Repugnance
What does the VSEPR theory say?
Bonds and lone pairs repulse each other
Bonds and lone pairs join with each other
According to the VSEPR theory, the shape of a BF3 molecule is _________
trigonal planar
trigonal pyramidal
bent
linear
According to the VSEPR theory, the structure of the ammonia molecule, NH3, is _______
trigonal planar
trigonal pyramidal
bent
linear
What shape is HBr?
linear
bent
trigonal planar
trigonal pyramidal
What is the shape of MgH2?
trigonal planar
trigonal pyramidal
bent
linear
What is the shape of CCl4?
tetrahedral
linear
bent
trigonal planar
The hybridized orbitals responsible for the bent shape of the water molecule are ____
sp3
sp2
sp
sp4
What is hybridization?
The mixing of orbitals
The mixing of neutrons
The mixing of electrons
The mixing of protons
Which hybrid orbitals help explain the bonding in methane, CH4?
4 domains, a single 2s and three 2p orbitals into 4sp3 orbitals
4 domains, two 2s and two 2p orbitals into 4sp3 orbitals
4 domains, three 2s and a single 2p orbital into 4sp3 orbitals
4 domains, four 2p orbitals into 4p3 orbitals
What are dipole-dipole forces?
Positive and negative, polar
Non-polar
What are London dispersion forces?
Positive and negative, polar
Non-polar
Are dipole-dipole or London dispersion forces stronger?
Dipole-dipole forces
London dispersion forces
Are molecular bonds or intermolecular forces stronger?
Molecular bonds
Intermolecule forces
Is CCl4 polar?
Yes
No
Is CO2 polar?
Yes
No
Is NH3 polar?
Yes
No
Is CH4 polar?
Yes
No
What makes a molecule polar?
When two atoms do not share electrons equally (opposite charges)
When two atoms share electrons equally (equal charges)
When a polar molecule attracts the electron in a nonpolar molecule?
a dipole is induced
a crystal lattice forms
a ionic bond forms
a Lewis structure forms
How does being polar or non-polar affect boiling point?
Non-polar molecules have lower melting and boiling points, polar molecules have higher melting and boiling points
Non-polar molecules have higher melting and boiling points, polar molecules have lower melting and boiling points
Why are metals good conductors of electricity?
The electric charges pass through freely and can carry a charge
The electric charges don't move and can't carry a charge
What is the shape of PCl5?
Trigonal Bipyramidal
Trigonal Planar
Trigonal Pyramidal
What is the shape of SF6?
Octahedral
Trigonal Bipyramidal
Bent
Tetrahedral
In metals, valence electrons are ____ by all atoms
shared
given
taken
stolen
In metals, the number of valence electrons is considered to be (smaller/larger) than in other types of bonds.
smaller
larger
What is a dipole?
The side of a molecule that is more negatively or positively charged
The top of a molecule that is more negatively or positively charged
The bottom of a molecule that is more negatively or positively charged
What is the shape of BCl3?
Trigonal Planar
Trigonal Pyramidal
Bent
Linear
What is the shape of CH4?
tetrahedral
octahedral
linear
bent
