ELECTROLYSIS

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

___________ electrode is an inert electrode.

• Copper

• Iron

• Carbon

• Zinc

Positive ions (cations) will move towards the cathode (-) where they will discharge by....

• Breaking apart
• Losing electrons
• Clumping together.
• Gaining electrons

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which equation shows what happen to chloride ions at the anode.

• Cl^- --> Cl + e-

• 2Cl^- --> Cl₂ + 2e-

• Cl₂ - -> 2e- + 2Cl^-

• Cl₂ + 2e- _--> 2Cl^-

Tags

NGSS.HS-PS3-5

What is electrolysis?

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

Tags

NGSS.HS-PS3-5

What is the name given to the solution that is being electrolysed?

• Salt solution
• Electric solution
• Mineral solution
• Electrolyte

Tags

NGSS.HS-PS1-5

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 is the removal of oxygen from a substance called?

• reduction
• extraction
• electrolysis
• oxidation

What is the addition of oxygen to a substance called?

• decomposition
• reduction
• oxidation
• extraction

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

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