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WorksheetsChapter 6 Study Guide Chemistry
Total questions: 29
Worksheet time: 15mins
A bond that is less than 5% ionic is considered
polar covalent
nonpolar covalent
ionic
Valence electrons are
outer shell electrons associated with an atom
inner shell electrons associated with an atom
As independent particles, most atoms are at ______ potential energy
relatively high
relatively low
As atoms bond with each other, they _____ their potential energy, making them more stable
increase
decrease
If 2 covalently bonded atoms are identical, what type of bond would form?
Nonpolar covalent
Polar covalent
Ionic
If the atoms that share electrons have an unequal attraction for the electrons, the bond is called
polar
nonpolar
Chemical bonds are
A lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds
The energy required to separate a mole of an ionic solid into gaseous ions
An outer shell electron that is associated with an atom
The greater the electronegativity difference between two bonded atoms, the greater the percentage of ___ in the bond
ionic character
covalent character
What are shared in a covalent bond
Valence electrons
Ions
Which of these has the highest ionic character?
Na and Cl - 2.23
K and Cl - 2.34
O and Cl - 0.28
Mg and Cl - 1.85
Lattice energy is
The energy required to separate a mole of an ionic solid into gaseous ions
A lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds
An outer shell electron that is associated with an atom
In a molecule of Oxygen, the 2 shared electrons give each oxygen atom how many electrons in the outer energy level?
8
6
2
In drawing a Lewis structure, each nonmetal atom except hydrogen should be surrounded by
8
16
4
12
In drawing a Lewis structure, the central atom is generally the ____ electronegative atom
most
least
Multiple covalent bonds may occur in atoms that contain carbon, nitrogen, or
oxygen
argon
helium
radium
How many covalent bonds are involved in H2O?
2
4
6
8
How many covalent bonds are involved in CH2Cl2?
2
4
6
8
How many covalent bonds are involved in NH3?
2
3
4
6
How many covalent bonds are involved in CCl4?
2
3
4
6
What is placed between a molecule's resonance structures to indicate resonance?
Double-sided arrows
Single-sided arrows
Dashes
Lines
The chemical formula for water, a covalent compound, is H2O. This formula is an example of a ____ formula.
molecular
scientific
complicated
simple
The percentage ionic character and the type of bond in F2 (electronegativity for F is 4.0) is
nonpolar covalent
polar covalent
ionic
A covalent bond consists of a ____ of electrons
mutual sharing
taking
A covalent bond in which there is an unequal attraction for the shared electron is
polar
nonpolar
What type of bond is the shortest?
single
double
triple
What type of bond is the weakest?
single
double
triple
Which of the following are the strongest bonds?
ionic
covalent
molecular
hydrogen
In a crystal of an ionic compound, each cation is surrounded by a number of
molecules
dipoles
positive ions
negative ions
When atoms are bonded together, are they more or less stable?
more stable
less stable
