Reactions Of Metals (2) Flashcards
Acid + metal –> _______ + ___________
Salt + Hydrogen
The more reactive the metal, the ___________ the reaction will go
Faster
The speed of the reaction is indicated by the rate at which bubbles of ____________ are given off
Hydrogen
Test for hydrogen
Burning splint test - squeaky pop
Dilute acid and Magnesium will give off a _______ squeaky pop
Big
Dilute acid and Aluminium will give off a fairly _______ squeaky pop
Fairly big
Dilute acid and Zinc will give off a _______ squeaky pop
Muted
Dilute acid and Iron will give off a _______ squeaky pop
Tiny
What is the link between squeaky pop and bubbles of hydrogen
A lot of bubbles means a loud squeaky pop
What does the name of the salt depend on
The metal and acid used
Hydrochloric acid will always produce __________ salts
Chloride salts
Sulfuric acid will always produce ___________ salts
Sulfate salts
Metals also react with water
Metal + Water –>
Metal hydroxide + hydrogen
Very reactive metals like ____________ will all react vigorously with water
(One of potassium, sodium, lithium, calcium, francium)
Less reactive metals like ____________ won’t react with water but they will react with ___________
(One of Magnesium, Zinc, Iron)
Steam
__________ won’t react with either water or steam
Copper
Reactivity series:
Potassium Sodium Lithium Calcium Magnesium Aluminium Zinc Iron Copper Silver Gold
A ________ reactive metal will displace a ________ reactive metal
More
Less
Why will a more reactive metal displace a less reactive metal from its oxide
Because it will bond more strongly to the oxygen
Iron oxide + Aluminium —>
Iron oxide + Aluminium —> Aluminium oxide + iron
Metal compounds such as, copper sulfate, zinc chloride and sodium chloride are all metal ________
Metal salts
What happens if you put a reactive metal into a solution of a less reactive metal salt
The reactive metal will replace the less reactive metal in the salt
E.g. Copper sulfate + Iron —> Iron sulfate + Copper
If you put a less reactive metal into a solution of a more reactive metal salt, what will happen
Nothing. No displacement
How are displacement reactions useful in chemistry
They allow for you to figure out where in the reactivity series a metal is supposed to go
