Reactivity Of Metals Flashcards
What are the reactions like with cold water for potassium sodium, and lithium?
Violent
What are the reactions with dilute acids like for potassium sodium, and lithium?
Violent
What is the reaction of cold water like for calcium?
Fast
What is the reaction like with cold water for magnesium?
Very slow
What is the reaction with dilute acids and calcium or magnesium like?
Rapid
What is the reaction between cold water and zinc like?
There is usually. No reaction
What is the reaction with cold water and iron like?
Rusts slowly
What is the reaction between dilute acids and zinc or iron like?
Slow
What is the reaction between cold water and copper or gold like?
There is no reaction
Reaction between dilute acids and copper or gold like
There is no reaction
Reaction between dilute acids and copper or gold like
There is no reaction
If a metal is more reactive, what does that mean about its reactions?
They are more vigourous and it is easier for them to lose electrons
What does a less reactive metal in a corrosive environment do to the lifespan of a structure?
Extends it
If you hold a burning splint with task tube after reacting a metal with dilute acid, how do you know whether it’s reactive or not?
Loud Pop will be heard if the metal is reactive And a quieter pop will be hard if the metal is not as reactive
What happens if you react to metal with a different metal compound and the metal is more reactive than one of the metals in the metal compound?
The more reactive metal takes the less reactive metals spot
What is formed when a metal reacts with a dilute acid?
A Salt and hydrogen
What is oxidation?
A gain of oxygen
What is reduction?
A loss of oxygen
When metals react with oxygen, what do they form?
Metal oxides
Why do we find iron in ores not pure iron ?
Because it gets oxidised
Why can we find pure silver gold and platinum
Because they are resistant to oxidation
What is reduction and how can you do it?
Reduction is removing oxygen from a metal compound you can use carbon to reduce an oxidised metal if the metal is less reactive than carbon otherwise you have to use electrolysis
What is formed when copper oxide reacts with carbon? What is reduced and what is oxidised?
Carbon (oxidised)dioxide and copper (reduced)
What type of copper is produced from copper oxide by heating with carbon?
Molten copper
What type of iron is produced when reacted with carbon?
Molten iron
Why is carbon more efficient than electrolysis but why doesn’t it always work?
Because it is cheaper, however carbon cannot extract compounds if the metal is more reactive than itself
What is an ore?
Brooke that contains enough of a metal or metal compound to make extracting the metal worthwhile
What is oxidation in term of electrons?
Loss of electrons (OIL)
What is reduction in terms of electrons?
Gain of electrons (RIG)
