1
Q
what does universla indicator do
A
show how acidic or alkaline a substance is
2
Q
what does ph scale do
A
measure strength f acid and alakali
3
Q
more acid…
A
0-2
4
Q
more acid colour
A
red
5
Q
less acidic colur
A
yellow
6
Q
neutral colour
A
green
7
Q
more alkaline
A
purple
8
Q
less alkaline
A
blue
9
Q
range of alkali
A
8-14
10
Q
range of acid
A
0-6
