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WorksheetsBonding Unit Review
Total questions: 27
Worksheet time: 20mins
A substance is a solid at room temperature and has a very high melting point, it also conducts electricity when dissolved in water. What type of bonding is at work here?
ionic
nonpolar covalent
metallic
polar covalent
Why do all bonds form?
so the number of protons equals the number of electrons
so an atom can become unstable
to fill the outermost energy level
Wax is a nonpolar solid.
Hexane is a nonpolar liquid.
Will wax dissolve in hexane?
YES because they are both nonpolar
YES because their names both contain an "x"
NO because at least one substance has to be polar to dissolve.
NO because solids can't dissolve in liquids.
The polarity of a bond is determined by...
The sum of the electronegativities of the two atoms
The difference in the electronegativities of the two atoms
The charges of the atoms
None of the Above
A diatomic molecule like O2 is always _____ because electrons are shared _____
nonpolar; unequally
polar; equally
nonpolar; equally
polar; unequally
Is this molecule polar or non-polar?
Polar
Non-polar
Which of the following words best describe what happens to electrons in ionic bonding?
delocalized
transferred
shared
destroyed
An ionic bond occurs between
two metals
two nonmetals
a metal and a nonmetal
two metalloids
Which would usually have a higher melting point?
Covalent Molecules
Ionic Compounds
Why do molecules form into the shapes we learned?
Polar Bonds
Electrons Repel each other
The ATOMIC SCIENCE LAW
Because it was told to
In the bond between Si and O, which atom will develop a partial negative charge
O
Si
Neither because it is nonpolar
Neither Because it is Ionic
Which of the following would be the intermolecular force in NONpolar molecules?
Hydrogen Bonds
Di-pole Di-pole
Covalent
London Dispersion Forces
What kind of bond would Ca and S form?
Ionic
Covalent
Metallic
Bond-Aid
Which statement explains why Br2 is a liquid at STP and I2 is a solid at STP?
Molecules of Br2 are polar, and molecules of I2 are nonpolar
Molecules of Br2 are nonpolar, and molecules of I2 are polar
Molecules of Br2 have stronger intermolecular forces than molecules of I2.
Molecules of I2 have stronger intermolecular forces than molecules of Br2.
Which type of IMF is responsible for the attraction pictured above?
Dipole-Dipole Interaction
Ion-Dipole Interaction
Hydrogen Bonds
Covalent Bond
Ionic Bond
Which type of IMF is responsible for the attraction pictured above?
Dipole-Dipole Interaction
Ion-Dipole Interaction
Hydrogen Bonds
Covalent Bond
Ionic Bond
Which of the following has hydrogen bonding?
The London (dispersion) forces are weakest for which of the following gases under the same conditions of temperature and pressure?
H2
O2
Xe
F2
N2
A charged group of covalently bonded atoms.
diatomic molecule
polyatomic ion
ionic bond
formula unit
