C5.7 Neutralisation and the PH scale Flashcards
1
Q
What are alkalis?
A
➢ Soluble hydroxides
2
Q
What can bases do?
A
➢ Neutralises acids
3
Q
Is pure water acid or alkaline?
A
➢ Neither acidic nor alkaline - it is neutral
4
Q
What is the order of the pH scale?
A
➢ 0 Is the most acidic
➢ 14 is the most alkaline
➢ 7 is neutral
5
Q
What colours are acid?
A
➢ yellow, orange - red
6
Q
What colours are alkaline?
A
➢ Blue and purple
7
Q
What is produced when you add an acid to the water?
A
➢ H+ ions
8
Q
What is produced when you add alkalis to water?
A
➢ OH- ions
