Electrolysis Quiz

What is electrolysis?

• The separation of a mixture into its component parts

• The process of converting a liquid into a gas

• The movement of charge through a solid material

• The flow of electrical current in a conducting solution or molten liquid that causes chemical changes

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What type of liquid can conduct electrical current?

• Only aqueous solutions

• Only molten ionic compounds

• Only liquids with a high boiling point

• Any liquid, regardless of its composition

What happens to sodium chloride when it is heated to over 801 degrees Celsius?

• It melts into a liquid

• It solidifies into a crystalline structure

• It turns into a gas

• It decomposes into its component elements

Tags

NGSS.HS-PS3-4

What are positive ions called?

• Anions

• Protons

• Cations

• Electrons

What are negative ions called?

• Anions

• Cations

• Protons

• Electrons

What happens when two electrical conductors are placed in a liquid?

• The liquid evaporates

• The liquid changes color

• Nothing happens to the liquid

• The liquid conducts electrical current

What happens when an electrical cell or power supply is connected to the two conductors in the liquid?

• The liquid solidifies

• The liquid changes temperature

• The liquid conducts more current

• The liquid undergoes chemical reactions

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-4

What happens to the ions in the liquid when current flows through the conductors?

• The ions become stationary

• The ions move towards the positive conductor

• The ions combine to form new compounds

• The ions move towards the negative conductor

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What triggers a chemical reaction in the liquid during electrolysis?

• The exchange of ions with the conductors

• The movement of electrons

• The change in temperature

• The change in pressure

What are the positive and negative electrodes called, respectively?

• Electron and proton

• Proton and electron

• Cathode and anode

• Anode and cathode

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5