Name of alkene | Molecular formula | Dot and cross diagram | Displayed formula | State at room temp (25oC) |
What is the general formula for alkenes?
1. Describe and explain the trend in boiling point
The boiling points are lower because unsaturated alkenes have weaker bonds.
The boiling points are lower because unsaturated alkenes have weaker bonds.
2. Explain why there is no such compound as methane
because there is only one carbon in the equivalent alkane and so no carbon carbon double bond can be formed.
because there is only one carbon in the equivalent alkane and so no carbon carbon double bond can be formed.
3. How do you quickly identify from the displayed formula that the hydrocarbon is unsaturated?
unsaturated hydrocarbons have a display formula of: CnH2n,, saturated hydrocarbons have twice the amount plus two of hydrogens from carbons
unsaturated hydrocarbons have a display formula of: CnH2n,, saturated hydrocarbons have twice the amount plus two of hydrogens from carbons
No comments:
Post a Comment