Electrochemistry IB

Reduction happens at the 

• none of the choices are correct 
• Cathode
• Salt bridge
• Anode

Oxidation happens at the

• Anode
• Cathode
• Salt bridge
• Voltmeter

This electrode in a voltaic cell gains mass

• Anode
• Cathode

This electrode in a voltaic cell loses mass 

• Anode
• Cathode

In a voltaic cell, the half cell that receives anions from the salt bridge is

• Cathode
• Anode

In a voltaic cell, the half cell that receives cations from the salt bridge is

• Cathode
• Anode

What unit of measurement do we use to measure electrical potential?

• Watts
• Volts
• Amps
• Ohms

In which direction does electricity flow in a voltaic cell (battery)?

• Electrons flow from the cathode to the anode
• Electrons flow from left to right
• Electrons flow from anode to cathode
• Electrons flow from right to left

Tags

NGSS.HS-PS3-5

What does OIL RIG mean?

• It's a pump used to remove oil from the ground
• Oxidation is losing protons, reduction is gaining protons
• Oxidation is losing electrons, reduction is gaining electrons
• Who knows?

Tags

NGSS.HS-PS1-5

Which of the metals would be the anode in a battery with these two elements?

• Gold: reduction potential = 1.5 V
• Chlorine: reduction potential = 1.368 V
• Neither could serve as the anode