acid + metal reactions Flashcards
1
Q
acids react with metals to form what?
A
salt and hydrogen
2
Q
what is a salt?
A
a compound formed when H is displaced from an acid
3
Q
formula for hydrochloric acid?
A
HCL
4
Q
formula for sulphuric acid?
A
H2S04
5
Q
formula for nitric acid?
A
HN03
6
Q
formula for phosphoric acid?
A
H3PO4
7
Q
HCL forms what type of salt?
A
metal chloride
8
Q
H2S04 forms what type of salt?
A
metal sulphate
9
Q
HN03 forms what type of salt?
A
metal nitrate
10
Q
H3PO4 forms what type of salt?
A
metal phosphate
11
Q
what 2 important observations are there in a metal + acid reaction?
A
- the metal disappears
- there is fizzing
12
Q
why can we not use Au, Ag or Cu?
A
they are less reactive than H so they cannot displace it
13
Q
why can we not use Li, Na or K?
A
their reaction with acids is too violent
14
Q
what is the chemical test for hydrogen?
A
lit splint- squeaky pop
