chem test 25/09

0.0(0)
Studied by 0 people
call kaiCall Kai
Locked
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/16

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 6:47 PM on 9/22/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai
Chat

No analytics yet

Send a link to your students to track their progress

17 Terms

1
New cards
What is electrolysis?
Using electricity to break down an ionic substance
2
New cards
What happens to an ionic substance when it is melted or dissolved in water?
The ions become free to move around
3
New cards
What is the name for the positive electrode?
The anode
4
New cards
What is the name for the negative electrode?
The cathode
5
New cards
Do positive ions move to the anode or the cathode?
Cathode
6
New cards
Do negative ions move to the anode or the cathode?
Anode
7
New cards
At which electrode would Zn2+(aq) turn into Zn(s)?
Cathode (needs to gain electrons)
8
New cards
At which electrode would Cl⁻(aq) turn into Cl₂(g)?
Anode (needs to lose electrons)
9
New cards
What will be the products for the electrolysis of molten iron bromide?
Iron and bromine
10
New cards
What will be the products for the electrolysis of molten zinc oxide?
Zinc and oxygen
11
New cards
For the extraction of which metals is electrolysis needed?
Those more reactive than carbon
12
New cards
What are the two main disadvantages of using electrolysis to extract metals?
Requires a large amount of energy to melt the compounds and to produce the necessary electricity
13
New cards
Why is aluminium oxide mixed with cryolite when extracting aluminium?
To lower the melting point of the mixture
14
New cards
What is produced at the anode and cathode in the electrolysis of aluminium oxide?
Aluminium at the cathode and oxygen at the anode
15
New cards
Why does the anode need to be replaced in the electrolysis of aluminium oxide?
The oxygen reacts with the carbon electrode to produce carbon dioxide
16
New cards
In the electrolysis of sodium chloride solution, what are the products?
Chlorine gas and hydrogen gas
17
New cards
Why is sodium not produced in the electrolysis of sodium chloride solution?
It is more reactive than hydrogen so hydrogen is produced inste