Describe the observations when sodium reacts with cold water.
A
- Sinks as a solid block
- Remains stationary
- Glows brightly as oxygen is produced
B
- Melts into a ball
- Dashes across the surface
- Fizzes rapidly as hydrogen is produced
C
- Melts into a thin film
- Moves slowly beneath the surface
- Reacts silently as oxygen is produced
D
- Forms a white precipitate
- Dashes across the bottom
- Fizzes rapidly as chlorine is produced
Properties of Period 3 elements and their oxides (A-level only) Flashcards
Flashcards for AQA A Level Chemistry Properties of Period 3 elements and their oxides (A-level only), covering the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3. 25 cards drawn from Properties of Period 3 elements and their oxides (A-level only), matched to the AQA A Level Chemistry (7405) specification. Recall questions account for roughly 30% of marks at A Level Chemistry, so these target the marks you can secure before the paper starts.