Acid and Alkali Flashcards
1
Q
define acid
A
a substance dissociates into H+ ions when dissolved in water
2
Q
define alkali
A
a substance dissociates into OH- ions when dissolved in water
3
Q
name pH indicators
A
litmus
methynl orange
phenolpthalein
4
Q
what colour is litmus?
A
blue
5
Q
what colour is methynl orange?
A
orange
6
Q
what colour is phenolphthalein?
A
colourless