2021 Chemistry Paper 2 Flashcards
1
Q
What are the propagation steps of the breakdown of ozone by Cl?
A
Cl + O₃ –> ClO + O₂
ClO + O –> Cl + O₂
2
Q
What is the overall reaction equation for the breakdown of ozone?
A
O₃ + O –> 2O₂
3
Q
Why are intermolecular forces stronger in molecules with more atoms?
A
More points of contact for London forces to occur.
4
Q
What are the steps of recrystallisation following the addition of the minimum volume of hot solvent?
A
- Cooling
- Filtration
- Drying
