1. p. 213

2. Table 7-1, p. 217

3. Table 7-2, p. 226

4. Figure 7.5
Hyperconjugation is a stabilizing interaction between the C=C π bond and adjacent C–H σ bonds on substituents, as indicated by this molecular orbital. The more substituents there are, the greater the stabilization of the alkene.
Fig. 7-5, p. 226

5. p. 224

7. Figure 7.8
A comparison of inductive stabilization for methyl, primary, secondary, and tertiary carbocations. The more alkyl groups there are bonded to the positively charged carbon, the more electron density shifts toward the charge making the charged carbon less electron poor (blue in electrostatic potential maps).
Fig. 7-8, p. 234

8. Figure 7.9
In the ethyl carbocation, CH3CH2+, there is a stabilizing interaction between the carbocation p orbital and adjacent C–H σ bonds on the methyl substituent, as indicated by this molecular orbital. The more substituents there are, the greater the stabilization of the cation. Only the C–H bonds that are roughly parallel to the neighboring p orbital are oriented properly to take part in hyperconjugation.
Fig. 7-9, p. 235

9. p. 228

10. p. 232

11. Figure 7.7
The structure of a carbocation. The trivalent carbon is sp2-hybridized and has a vacant p orbital perpendicular to the plane of the carbon and three attached groups.
Fig. 7-7, p. 233

12. p. 234