C5 Aqueous Electrolysis

What is the name of the positive electrode?

• cathode
• anode

What is the name of the negative electrode?

• cathode
• anode

The diagram shows the electrolysis of lead(II) bromide using inert electrodes. Why does the bulb only light up when the lead(II) bromide is melted?

• Bromine atoms in lead(II) bromide are converted to ions when it is melted

• Electrons flow through the lead(II) bromide when it is melted

• The ions in lead(II) bromide are mobile charge carriers in the molten state.

• There are no ions in solid lead(II) bromide

Tags

NGSS.HS-PS1-3

What is the name of a positively charged ion?

• positron
• proton
• cation
• anion

What is the name of a negatively charged ion?

• negatron
• electron
• cation
• anion

What state must the ionic compound be in to be electrolysed?

• aqueous only
• solid only
• solid or aqueous only
• molten or aqueous only

What particle carries the charge in the wire?

• electron
• proton
• ion
• atom

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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

• copper
• chlorine
• oxygen
• ^chloride 

Tags

NGSS.HS-PS2-5

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-PS2-5

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