yr 10 electrolysis of aqueous solutions

Explain why the electrolyte has to be a liquid.

• So the ions can move
• So the electrons can move
• So that it doesn't get too hot
• So the fish are ok

What happens at the positive electrode?

• Positive non-metal ions are attracted
• Positive metal ions are attracted
• Negative non-metal ions are attracted
• Negative metal ions are attracted

Tags

NGSS.HS-PS2-5

When NaCl solution is electrolysed what has forms at the anode?

• Hydrogen
• Oxygen
• Chlorine
• Sodium

In an aqueous solution of copper chloride, which ions are attracted to the negative electrode?

• Cu²⁺ and Cl^- and H⁺ and OH^-
• Cu²⁺ and H⁺ 
•  Cl^- and OH^-
• Cu²⁺ 

Tags

NGSS.HS-PS2-4

In an aqueous solution of copper chloride, which substance is produced at the positive electrode

• copper
• chlorine
• oxygen
• ^chloride 

Why is electrolysis of aqueous (dissolved) solutions more complicated than molten?

• Water is messy

• Water contributes hydrogen and hydroxide ions to the electrolyte

• It is easier to dissolve some substances in water than to melt them

In an aqueous solution of copper chloride, which substance is produced at the negative electrode

• copper

• chlorine

• oxygen

• ^chloride

Tags

NGSS.HS-PS2-5

• A

• B

• C

• D

Tags

NGSS.HS-PS2-5

• A

• B

• C

• D

Tags

NGSS.HS-PS1-5

• A

• B

• C

• D