Electrolysis intro

What is the name of the positive electrode?

• cathode
• anode

What is the name of the negative electrode?

• cathode
• anode

Tags

NGSS.HS-PS3-5

The negatively charged ions migrate toward the ________.

• anode
• cathode

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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 acting as the mobile charge carriers when it is melted
• There are no ions in solid lead(II) bromide

Tags

NGSS.HS-PS2-5

The positively charged ions migrate toward the ________.

• anode
• cathode

The electrode connected to the positive terminal of a battery is __________.

• cathode
• anode

What is the product formed at the cathode during the electrolysis of molten magnesium fluoride?

• magnesium
• hydrogen
• fluorine
• oxygen

What is the product formed at the anode during the electrolysis of concentrated copper(II) chloride?

• copper
• chlorine
• hydrogen
• oxygen

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