Voltaic Cells

The reaction is spontaneous in ...

• A Galvanic Cell

• A Electrolytic Cell

• Both Galvanic and Electrolytic cells

In an electrochemical cell, Which would be an accurate half-equation at the anode for aluminum?

• Al³⁺ + 3e^- --> Al

• Al --> Al³⁺ + 3e^-

• Al³⁺ --> Al + 3e^-

• Al + 3e^- --> Al³⁺

Tags

NGSS.HS-PS3-5

A salt bridge is used in...

• A Galvanic Cell

• A Electrolytic Cell

• Both Galvanic and Electrolytic cells

A student decided to silver-plate a locker key using the apparatus shown. In this cell, the key is the

• anode and is connected to the positive terminal of the power supply

• anode and is connected to the negative terminal of the power supply

• cathode and is connected to the positive terminal of the power supply

• cathode and is connected to the negative terminal of the power supply

Tags

NGSS.HS-PS2-5

The anode is where oxidation occurs in...

• A Galvanic Cell/ voltaic

• A Electrolytic Cell

• Both Galvanic and Electrolytic cells

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

• cathode

• anode

Tags

NGSS.HS-PS2-5

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

• cathode

• anode

Which changes could take place at positive electrode in a voltaic cell?

• I and II

• I and III

• II and III

• I, II and III

Tags

NGSS.HS-PS1-2

Below shows a cell diagram for voltaic cell. Which of the following is FALSE?

• Electrons flow from anode to cathode

• Oxidation happens in anode

• Copper undergo reduction to form copper ions

• Zinc undergo oxidation to form Zinc ions

Tags

NGSS.HS-PS1-7

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