Metal Reactions Flashcards
1
Q
metal + water –>
A
metal hydroxide + hydrogen
2
Q
sodium + water –>
A
sodium hydroxide+ hydrogen
3
Q
metal + acid –>
A
salt + hydrogen
4
Q
give the reactivity series in order
A
potassium
sodium
calcium
magnesium
aluminium
zinc
iron
copper
Silver
gold
**Please stop calling me a zesty individual **
5
Q
what 3 metals are less reactive than hydrogen
A
copper silver and gold
6
Q
what are 3 exceptions to the reactivity series
A
- aluminium has a layer of aluminium oxide that stops it from reacting with water
- a layer of calcium sulfate forms which slows the reaction
- magnesium hydroxide forms which slows its reaction with water
7
Q
what is a metal displacement reaction
A
when a more reactive metal displaces a less reactive one
8
Q
what type of reaction is a displacement reaction
A
exothermic
9
Q
what is an OIL RIG
A
oxidation is loss
reduction is gain
10
Q
what is a redox reaction
A
where atoms are reduced and oxidised
11
Q
why are some metals more reactive than other
A
as they more easily react and lose electrons to form cations
