GCSE Chemistry – Electrolysis Study Guide Exam And Actual Answers 2024.
6 views 0 purchase
Course
GCSE Chemistry
Institution
GCSE Chemistry
What is electrolysis? - Answer The breaking down of a substance using electricity
Types of electrolysis - Answer Of aqueous ionic compounds
Of molten ionic compounds
Ionic compound - Answer a compound composed of positive(cations) and negative ions(anions)
Why can't ionic compounds...
GCSE Chemistry – Electrolysis Study Guide Exam And Actual Answers 2024.
What is electrolysis? - Answer The breaking down of a substance using electricity
Types of electrolysis - Answer Of aqueous ionic compounds Of molten ionic compounds
Ionic compound - Answer a compound composed of positive(cations) and negative ions(anions)
Why can't ionic compounds conduct electricity as solid? - Answer The electrons aren't free to move and
carry the charge through the structure
What is an electrolyte? - Answer a liquid/solution that conducts electricity
Define discharge - Answer Gain/loss of electrons to become electrically neutral/ an atom
What is the general rule for electrolysis of aqueous solutions regarding which ion gets discharged at each
electrode ? - Answer The ion that is easiest to discharge will be discharged
How are electrolytes made? - Answer by melting or dissolving ionic compounds
What is the a positive electrode called? - Answer Anode
What is a negative electrode called? - Answer Cathode
reduction - Answer gain of electrons
Oxidation - Answer loss of electrons Which electrode are cations discharged at ? - Answer Cathode
Does oxidation or reduction occur at the cathode? - Answer reduction
Cations are discharged at the cathode as they gain electrons to become atoms
Which electrode are anions discharged at? - Answer Anode
Does oxidation or reduction occur at the anode? - Answer oxidation
Anions are discharged at the anode as they lose electrons to become atoms
How do ions become atoms or molecules? - Answer By losing or gaining electrons
How does an electrolysis circuit become complete? - Answer A flow of electrons taken from anode to cathode
How do you measure the conductivity of an electrolyte? - Answer With a conductivity probe
In molten ionic compounds there is only ___________ - Answer one source of ions
In the electrolysis of molten lead bromide what is the half equation for the Pb2+ ions? - Answer Pb2 + 2e --> Pb
In the electrolysis of molten lead bromide what is the half equation for the Br- ions? - Answer 2Br- --
>Br2 + 2e
What is an electric current? - Answer the flow of electrons
What is a covalent bond? - Answer a shared pair of electrons
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TestSolver9. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R156,99. You're not tied to anything after your purchase.
