Chemical Changes Flashcards
1
Q
What does the ph scale go from
A
0-14
2
Q
What’s does the ph scale measure ?
A
A acidic or alkali a solution is
3
Q
What are 1-6 on the ph scale ?
A
Acids
4
Q
What is 7 on the ph scale ?
A
Neutral
5
Q
What is 8-14 on the ph scale
A
Alkali
6
Q
What’s colour are acids on the ph scale
A
Yellow and red
7
Q
What colour are alkalis on the ph scale ?
A
Dark green and purple
8
Q
What does Acid + metal hydroxide =
A
Salt + water
9
Q
What does acid + metal oxide =
A
Salt + water
10
Q
Define electrolysis :
A
The breaking down of a substance using electricity
