Displacement Reactions Flashcards
Thermite reaction
Aluminium and Iron Oxide = reagents (things that react to each other)
Explosion, lots of heat keeps iron molten
Aluminium + iron Oxide -> Iron + Aluminium Oxide
Aluminium displaces iron from iron oxide
Used to weld rails, so hot used to melt metal rails together
Displacement reactions
More reactive metal can steal oxygen from metal oxide of less reactive metal
Oxidation
Gains oxygen
Reduction
Loses oxygen
Magnesium + copper oxide ->
magnesium oxide + copper
Zinc + lead oxide->
Zinc oxide + lead
Copper + iron oxide->
No reaction line through arrow
Iron + copper sulphate
-> copper + iron sulphate
Zinc + magnesium Sulfate
-> no reaction
Iron sulphate + magnesium
-> magnesium Sulfate + Iron