Acids And Alkalis Flashcards
1
Q
What is the chemical called when the pH is less than 7
A
An acid
2
Q
What is the name of the chemical when the pH is more than 7
A
Alkali
3
Q
On the pH scale what are 1-3
A
Strong acids
4
Q
On the pH scale what are 4-6
A
Weak acids
5
Q
On the pH scale what is 7
A
Neutral
6
Q
On the pH scale what is 8-11
A
Weak alkalis
7
Q
On the pH scale what are 12-14
A
Strong alkalis
8
Q
What is an indicator
A
A special chemical that changes to different colours in an acid or an alkali
9
Q
Give 2 examples of indicators
A
Litmus indicator
Universal indicator
10
Q
What do acids turn litmus paper to
A
Blue-Red
11
Q
What do alkalis turn litmus paper to
A
Red-Blue
