Ionic
What types of elements make up an ionic compound?
metal + nonmetal
What types of elements make up a covalent compound?
Nonmetals only
What is the formula of calcium fluoride?
CaF2
What intermolecular force exists between molecules of H2O?
Hydrogen Bonding
When bonds are broken energy is _____________
When bonds are formed energy is _____________
absorbed
released
Ionic compounds have an electronegativity difference greater than _____
1.7
In terms of electron behavior, what is the difference between a polar and nonpolar covalent bond?
Nonpolar = equal sharing
Polar = unequal sharing
What is the name of N2O5?
dinitrogen pentoxide
What is the difference between a nonpolar and polar MOLECULE?
Symmetry
Symmetrical Nonpolar = no uneven charges
Asymmetrical polar = creates partial charges
How many valence electrons is considered a stable outer shell?
8
How do electrons behave in an ionic bond?
Electrons are transferred
In the bond between H-Cl electrons are more attracted to which element and why?
Cl because it has a higher electronegativity
What is the formula of tetraphosphorous decasulfide?
P4S10
Which side of H2O (the oxygen side or the hydrogen side) will be attracted Na+, explain your response.
The oxygen side because opposite charges attract
When bonds form the stability of the system __________
Increases
Explain in terms of ion behavior why ionic compounds can conduct electricity in aqueous solution, but not as a solid
MOBILE
List a few properties of covalent compounds?
Low MP and BP
soft
NEVER Conduct
What is the formula of aluminum sulfate?
Al2(SO4)3
Explain in terms of molecular polarity and IMFs why oil is insoluble in water.
oil is nonpolar and has weak IMFs , water is polar with strong IMFs.
Like Dissolves Like
Compare the properties and molecular structures of diamond and graphite.
Different / Different
Draw the Lewis Structure of AlBr3
SHOW ON BOARD
Draw the Lewis Structure of AsCl3
SHOW ON BOARD
What is the name of MnO2?
manganese (IV) oxide
Explain why I2 is a solid at STP whereas F2 is a gas at STP
Iodine has stronger intermolecular forces than fluorine because it is larger
When calcium and sulfur form an ionic bond, their electron configurations resemble which noble gas?
Argon (Ar)