Paper 1: Acids And Alkalis Flashcards
1
Q
What properties do acids have?
A
Ph is less than 7
A source of hydrogen ions
2
Q
What are the properties of alkalis?
A
Ph is above 7
Source of hydroxide ions
3
Q
What is the PH scale?
A
A measure of the acidity or alkalinity a solution is
4
Q
What numbers on the ph scale are acidic?
A
0-6
5
Q
What number on the ph scale is neutral?
A
7
6
Q
What numbers on the ph scale are alkalis?
A
8-14
7
Q
What are indicators?
A
Substances that have different colours depending on their PH
8
Q
What is often used to estimate the ph of a solution?
A
Universal indicator/paper
