Reactivity Series Flashcards
What is the reactivity Series order?
Please Potassium
Send Sodium
Lions Lithium
Cats Calcium
Monkeys Magnesium
And Aluminium
Cute carbon
Zebras Zinc
Into Iron
Terrifically Tin
Lovely Lead
Hot Hydrogen
Countries Copper
Signed Silver
General Gold
Penguin Platinum
Which metals react with cold water?
Calcium and up
Which metals react with steam
Metals higher than hydrogen
What metals react with dilute acid?
Metals higher than hydrogen
How do metals react with water?
Water(l) + metal -> metal hydroxide + hydrogen
(effervescence)
How do metals react with dilute hydrochloric acid or sulfuric acid?
metal + acid -> salt + hydrogen
How do metals react with steam?
metal + water(g) -> metal oxide + hydrogen
(effervescence)
What are redox reactions?
Reactions where oxidisation and reduction occur simultaneously.
Acronym for gain and loss of electrons
Oxidisation
Is
Loss
Reduction
Is
Gain
(of electrons)
What are reducing agents?
Reducing agents causes something else to be reduced (by removing its oxygen) and gets oxidised itself. The opposite of this would be an oxidising agent.
Under what conditions does iron rust?
When in contact with water and oxygen. Rusted iron is Fe(2)O(3).xH(2)O
What are the methods of preventing iron rusting?
Barrier method
Galvanising
Sacrificial protection
What is Barrier method?
Barrier method is coating Iron with a layer of something else to stop oxygen/water to touch iron. e.g. paint, oil, grease
What is galvanising?
Galvanising is coating Iron with a more reactive metal. This will both sacrificial protect and coat. This is usually done with zinc
What is sacrificial protection?
This is blocks of a more reactive metal than iron, which are scattered around which protects iron as water and oxygen will react in preference with this metal. This is usually zinc.
