Metals + Acids Flashcards
Name two non metals in the reactivity series.
Carbon and hydrogen
Why can’t carbon be used to extract sodium from it’s ore?
Carbon is less reactive then sodium.
Why does magnesium react with sulfuric acid?
Magnesium is above hydrogen in the reactivity series.
In the neutralisation of sulfuric acid by potassium hydroxide, what displaces the hydrogen in the acid?
The potassium
What would you see happening when a strip of zinc is dipped into a solution of,
a) colourless magnesium sulfate solution?
b) blue copper sulfate solution?
a) nothing, zinc is less reactive then magnesium.
b) The zinc strip becomes coated in copper and the solution goes colourless - zinc is more reactive then copper and displaces it in the solution.
In a reaction, copper and zinc oxide were produced.
a) write a word equation to show this reaction.
b) what kind of reaction is this?
c) why did this reaction take place?
a) copper oxide + zinc - copper+ zinc oxide
b) Displacement
c) zinc is more reactive then copper
If you used aluminium oxide instead of copper oxide, what would happen?
Nothing, zinc is less reactive then aluminum, so it would not displace aluminium from it’s oxide.
Mercury Lithium Silver Magnesium Write these four metals in order of reactivity, beginning with most reactive.
Lithium
Magnesium
Mercury
Silver
Write a word equation for the reaction of magnesium with hydrochloric acid.
magnesium + hydrochloric acid - magnesium chloride + hydrogen
Explain why the metal aluminium could not have been extracted by using traditional carbon reduction methods.
Carbon is less reactive then aluminium, therefore, it cannot displace aluminium from it’s compounds/ ores.
Suggest another metal that is not likely to have been in use a few centuries ago.
Potassium, sodium, calcium, magnesium.
Explain why it is unlikely that any objects made from pure calcium would ever be found in the ground.
Because calcium is very unstable/ reactive.
