LI-11 pH and indicators Flashcards
1
Q
what is pH balance?
A
the level of acidity or basicity of any solution is measured on a scale called pH
2
Q
what is the pH scale
A
acidic0—–Nuetrual7—–>basic14
3
Q
what is a common neutral solution
A
pure water
4
Q
what is an indicator ?
A
a indicator is a chemical that changes color depending on how acidic or basic the solution is
5
Q
strongest acid colour
A
RED
6
Q
neutral acid colour
A
GREEN
7
Q
strongest bases colour
A
PURPLE
