Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


getting metals from rocks

what is a metal ore? a rock which contains enough metal to make it worthwhile extracting the metal from it
how do you extract metals from their ores? using a chemical reaction
a metal can be extracted from its ore chemically by reduction using... carbon (metal oxide + carbon--> metal + carbon dioxide)
what happens when an ore is reduced? oxygen is removed from it
which metals in the reactivity series can be extracted by reduction using carbon? and why? metals below carbon because carbon can only take the oxygen away from metals which are less reactive than carbon itself is
how are metals more reactive than carbon extracted? electrolysis of molten compounds
what can electrolysis also do? can be used to purify metals, but is expensive
what does electrolysis mean? splitting up with electricity, breaking down a substance with electricity
what is an electrolyte? a liquid to conduct electricity, metal salt solutions made from an ore e.g. copper sulphate
how else can you extract copper from a solution? using a displacement reaction
what happens if you put a reactive metal into the solution of a dissolved metal compound? and why? the reactive metal will replace the less reactive metal in the compound because the more reactive metal bonds more strongly to the non metal bit of the compound and pushes out the less reactive metal e.g copper sulphate + iron --> iron sulphate +copper
what happens if a piece of silver metal is put into the solution of copper sulphate? no reaction because copper is the more reactive metal
why is the extraction of aluminium and titanium expensive? low density thin layer of oxides on their surface which stops air and water getting to the metal so they resist corrosion they cannot be extracted from their oxides by reduction with carbon , this process needs a lot of electrical energy, several stages
Created by: rv1



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards