| Select | | View | Download | | 8.1 Covalent bonding and covalent compounds | | |
| 8.2 Molecular formulae, structural formulae and molecular models | | |
| 8.3 Dative covalent bond | | |
| 8.4 Writing the formulae and names of covalent compounds | | |
| 8.5 Relative molecular mass and formula mass | | |
| 8.6 Chemical bonding and the constituent particles in different substances | | |
| 8.1 Covalent bonding and covalent compounds (bilingual version) | | |
| 8.2 Molecular formulae, structural formulae and molecular models (bilingual version) | | |
| 8.3 Dative covalent bond (bilingual version) | | |
| 8.4 Writing the formulae and names of covalent compounds (bilingual version) | | |
| 8.5 Relative molecular mass and formula mass (bilingual version) | | |
| 8.6 Chemical bonding and the constituent particles in different substances (bilingual version) | | |
| Covalent bonding (combined version) | | |
| Covalent bonding (bilingual, combined version) | | |