Problems and exercisesCarbon Structures without end

1. Each carbon, its shape

State the geometry of each carbon:

1. CH₃–CH=CH₂ (propene)
2. HC≡C–CH₃ (propyne)
3. CH₃–CO–CH₃ (acetone)

2. Electron densities

How many electron densities ("balloons") surround a carbon with four single bonds, with a double bond and with a triple bond?