Reactivity Of Metals Flashcards
List the reactivity series
From the top
Potassium
Sodium
Lithium
Calcium
Magnesium
Carbon
Zinc
Iron
Hydrogen
Copper
What is reactivity ?
How easily it forms a positive ion by loosing electrons
What is the most reactive group ?
Group 1 then 2 then transition
What does a metal and an acid when reacted together form ?
Give one example
A salt and hydrogen
Potassium + acid —- potassium chloride and hydrogen gas
If an element is more reactive the reaction is more what ?give an example
Violent
When potassium reacts with acid it reacts explosively possibly catching fire and whizzing around producing hydrogen gas
The reactions get gradually what as you go down the series ? Give some examples
Less violent
Like magnesium with acid would bubble abit but disappear
Then fewer bubbles
And copper wouldn’t react at all
The most reactive metals will produce the most what ?
Heat !
How do we ensure the tests are fair ?
Same mass and surface area for each one
And same type and concentration of acid
What are the products when metals react with water ? Give one balanced example and which metals can do this.
Metal hydroxides and hydrogen gas
2Li+2H2O—2LiOH+H2
Only the most reactive metals can do this metals like zinc iron and copper won’t react at all
What is a displacement reaction ? Give the ‘big idea’
More reactive metals can displace less reactive ones
Give an example of a DISPLACEMENT reaction.
Mg+ FeSO4 —-MgSO4+Fe
Magnesium is MORE reactive so it DISPLACES iron
If it was something like copper nothing would happen because it’s LESS reactive than iron
What is the rhyme to help learn it ?
Please -potassium
Send- sodium
Charlie’s- calcium
Monkeys - magnesium
And- aluminum
Zebras - zinc
In- iron
Large - lead
Cages - copper
Securely- silver
guarded - gold
How do potassium, sodium and lithium react with water?
Very rapidly with water at room temp
How does calcium react with water ?
Quite rapidly with water at room temp
How do magnesium, zinc, iron and copper react with water?
No reaction with water at room temperature
