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Chemistry

GCSE · AQA

QuestionsFlashcards

Simple Model of the Atom
The Periodic Table
Properties of Transition Metals
- Typical Properties of Transition Metals
  7
- Transition Metals vs. Alkali Metals
  6

Ionic, Covalent & Metallic Bond
Bonding & Substance Properties
Structure & Bonding of Carbon
Bulk & Surface Properties
- Sizes of Particles & their Properties
  6
- Nanoparticles
  6

Formation of Earth's Atmosphere
CO2 & CH4 as Greenhouse Gases
Causes of Atmospheric Pollution
- Atmospheric Pollutants from Fuels
  6
- Properties & Effects of Atmospheric Pollutants
  6

Global Reserves & Potable Water
Life Cycle Analysis & Recycling
- Life Cycle Assessment
  7
- Reducing Use of Resources
  5
Using Materials
Haber Process & NPK Fertilisers

The Process of Electrolysis Flashcards

All 6 cards in this deck

What is an electrolyte?: An ionic compound that is molten or dissolved in water, so its ions are free to move and it can conduct electricity.
True or false? A solid ionic compound conducts electricity.: False. In the solid the ions are in fixed positions and cannot move, so it only conducts when molten or dissolved.
What are the names of the positive and negative electrodes in electrolysis?: Positive electrode = anode; negative electrode = cathode.
In electrolysis, which electrode does each type of ion move to, and why?: Positive ions move to the negative electrode (cathode) and negative ions move to the positive electrode (anode), because opposite charges attract.
What is electrolysis?: Passing an electric current through an electrolyte so that ions move to the electrodes and are discharged, producing elements.
True or false? Electrons travel through the electrolyte to carry the charge.: False. Ions move through the electrolyte; electrons only travel through the wires and electrodes.