Lesson 4 Flashcards
1
Q
Why is sodium stored under oil
A
This prevents the sodium reacting with oxygen or water vapour in the air
2
Q
What colour of flame is produced when sodium reacts with water
A
Orange / Yellow
3
Q
What colour flame is produced when potassium reacts with water
A
Lilac
4
Q
Why does a piece of potassium float in water
A
It is less dense than 1g | cm³
5
Q
Wich g
A
