• What is covalent bonding?
• How are covalent bonds formed?
• How are sigma bonds formed?
• There can only be one sigma bond between two atoms. True or false?
• How are pi bonds formed?
• Pi bonds can be formed from p, d and f orbitals. True or false?
• What are bond pairs?
• What are lone pairs?
• Are covalent bonds intramolecular or intermolecular forces?
• How do intramolecular and intermolecular forces affect the properties of a molecule? Use HCℓ as an example.
• Most covalent molecules are polar. True or false?
• What are dispersion forces caused by?
• How are dispersion forces formed?
• Dispersion forces are weak intermolecular forces. True or false?
• How does number of electrons affect the strength of dispersion forces?
• Factors affecting boiling points of non-polar molecules?
• During melting/boiling, only the weak intermolecular forces are broken, the strong covalent bonds are not. True or false?
• Why are the melting + boiling points of simple covalent molecules usually lower than those of metals/ionic/giant molecular compounds?
• Why are simple covalent molecules unable to conduct electricity in both solid/liquid states? (covalent compounds’ aqueous states basically equals liquid state as the molecules don’t break down into respective charged ions)?
• Explain the difference in boiling/melting point between [number of compounds] compounds.