Reactivity Of Metals-Paper 1 Flashcards
What is an oxide or sufide?
A compound
What is an Ore?
A rock which is economically viable to extract a metal.
What is negative about quarrying and mining?
Causes environmental damage as well as being extremely noisy.
What are moderately reactive metals (e.g. Iron) usually extracted using?
Heating the oxide (iron oxide) with carbon
What is electrolysis used to extract? Why is it only used for these?
Only used for highly reactive products as it would be too expensive to use for everything.
What happens if the ore is in the form of metal sulfide?
The ore is roasted in the air to convert it to the oxide. Sulfur dioxide is released and if it isn’t collected it will pollute in the form of acid rain.
Iron oxide + Carbon goes to….
Iron + Carbon dioxide.
Why can titanium not be extracted by carbon?
The metals fromed this way are too brittle to be useful.
Why may you want to extract copper using a higher reactivity method?
As if you want to use copper as a conductor then it must be extremely pure, so you must use electrolysis.
What must be considered with the environmental damage that the extraction may cost?
The usefulness of the product.
What is a displacement reaction?
A metal trying to react with the salt of another metal.
In a displacement reaction where does the more reactive metal end up?
As a salt
What form do reactive metals like to be in?
Their ions, they are keen to lose electron/s to form a positive ion.
What form to unreactive metals like to be in?
Their atoms, they want to grab an electron/s to neutralise the positive charge of their ion.
What is a substance that causes something else to be oxidised called?
An oxidising agent.
