Electrolysis 1 binary

What is electrolysis?

• breaking down of a compound using a current
• making a compound using a current

Tags

NGSS.HS-PS3-5

Which statement correctly describes the 2 electrodes?

• The anode is negative and the cathode is positive
• The anode and cathode are both positive
• The anode is positive and the cathode is negative
• The anode and cathode are both negative.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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

What happens at the negative electrode?

• Positive non-metal ions are attracted

• Positive metal ions are attracted

• Negative non-metal ions are attracted

• Negative metal ions are attracted

What are the products of electrolysis of MOLTEN lead Bromide

• Cathode: Lead Anode: Bromine

• Cathode: Lead Anode: Oxygen

• Cathode: Bromine Anode: Lead

• Cathode: Oxygen Anode: Lead

Which ions are present in MOLTEN sodium chloride

• Na+ Cl+

• Na+ Cl-

• Na- Cl-

• Na- Cl+

Metal ions are

• positive so attracted to the positive electrode

• negative so attracted to the negative electrode

• positive so attracted to the negative anode

• negative so attracted to the positive anode

Which TWO sayings help with electrolysis

• Opposites attract

• Help is at hand

• Stay Calm

• Don't PANIC

Ionic compounds conduct electricity

• When gaseous only

• When solid, molten or aqueous only

• When solid only

• When molten or aqueous only