Year 7-Topic two Flashcards
1
Q
Which of these is most reactive?
Lithium-Li
Iron-Fe
A
Lithium-Li
2
Q
Put them in order of lest to most reactive
Potassium-K
Silver-Ag
Calcium-Ca
Tin-Sn
A
Potassium-K
Calcium-Ca
Tin-Sn
Silver-Ag
3
Q
What is the chemical symbol for Arsenic
A
As
4
Q
What is the chemical symbol for Boron
A
B
5
Q
What is the chemical symbol for Oxygen
A
O
6
Q
What is the chemical symbol for Hydrogen
A
H
7
Q
What colour does red litmus paper go is an alkali is added?
A
Blue
8
Q
What colour does blue litmus paper go if an alkali is added?
A
It stays blue
9
Q
What colour does blue litmus paper go if an acid is added?
A
Red
10
Q
What colour does red litmus paper go if an acid is added?
A
It stays red
11
Q
What colour do both red and blue litmus paper go if a neutral is added?
A
Green
