Electrolysis Flashcards
What is an ore?
A rock containing a metal
What is a native metal?
An metal that is un reactive so is not combined with any other element.
How are metals more reactive than carbon extracted?
Electrolysis
How are metals less reactive than carbon extracted?
Reduction
What does electrolysis mean?
Breaking apart a compound using electricity.
What is anion?
Negatively charged ion
What is a cation?
A positively charged ion
Which electrode do positively charged ions travel to?
Negative electrode ( cathode )
Which electrode does negatively charged ions travel to?
Positive electrode ( anode )
How are negative ions formed?
Gain electrons
How are positive ions formed?
Losing electrons
What are the stages of a life cycle assessment?
Obtain
Manufacture
Use
Dispose
What is produced when a metal reacts with a water?
Metal hydroxide + hydrogen
What pH range are alkalis?
pH 8-14
What pH range are acids?
pH 1-6
What is produced when a metal reacts with an acid?
Salt + hydrogen
What is the test for hydrogen?
Lit splint
Squeaky pop
What is displacement?
When a more reactive metal takes the place of a less reactive metal in a compound.
