General Formulas
What is the general formula for the alkanes?
CnH2n+2
When n=2, what is the name of the alkene group?
Ethene
Ax4 Type is what kind of plane and what type of bond angle?
What is the term for the attraction of electrons in a covalent bond?
Electronegativity
2D structure demonstrates what type of structure?
Lewis Dot structure
CnH2n-2
When n=3, what is the name of the alkane group?
Propane
Ax3 Type is what kind of plane and what degree is the bond angle?
Triangular plane; <120 degrees
A polar bond will be produced when the electronegativity of A-B is what value?
Greater than or equal to 0.5 - 1.9
a 3D structure demonstrates what type of model?
VSPER Model
What is the general formula for the aldehydes?
R-Cho
When n=1, what is the name of the aldehyde group?
methanal
Linear; 180 degrees
A non polar bond will be produced when the electronegativity of A-B is what value?
Less than 0.5
Can Carbo be a metal or nonmetal? Why or why not?
No because it can only share its electrons
What is the general formula for carboxylic acid?
R-COOH
When n=2, what is the name of the carboxylic acid group?
Ethanoic acid
Why is the bond angle in the Ax3 Type <120?
Because the pi bonds are mobile and can repel and squeeze via the repulsive effect
Is the molecule CH3Cl polar or non-polar?
Polar: because only one bond has to be polar for it to be a polar bond even though one of the bonds is non- polar.
Where does the alkyl group originate from?
The alkanes
What is the general formula for Ethers?
R-O-R1
When n=3, what is the name of the alkyl group?
All the examples of Ax4, Ax3, and Ax2 are examples of what kind of model? Why?
VSPER because they are 3D structures
Is CCl4 polar or non polar? Why?
Non-polar because the molecule has a symmetrical structure so its 3D geometric shape will not allow this.
What are the exceptions to the octet rule? Why are they exceptions?
P,S,Cl because they have more than 8 electrons, but they can put the extras in the shell 3D because its empty.