Chemistry IB Topic 9

This type of cell converts energy from spontaneous, exothermic chemical processes to electrical energy.

• Voltaic

• Electrolytic

In a voltaic cell,

• oxidation occurs at the anode and reduction occurs at the cathode.

• oxidation occurs at the cathode and reduction occurs at the anode.

Tags

NGSS.HS-PS2-5

In a voltaic cell,

• the anode is the negative electrode and the cathode is the positive electrode.

• the anode is the positive electrode and the cathode is the negative electrode.

Tags

NGSS.HS-PS2-5

At the anode in a voltaic cell,

• the electrode will lose mass

• the electrode will gain mass

• the mass of the electrode will not change

At the cathode in a voltaic cell,

• the electrode will gain mass

• the electrode will lose mass

• the mass of the electrode will not change

In general the more reactive a metal, the more ________ its electrode potential in its half-cell.

• positive

• negative

This type of cell converts electrical energy to chemical energy by bringing about non-spontaneous processes.

• Voltaic

• Electrolytic

In an electrolytic cell,

• the anode is the negative electrode and the cathode is the positive electrode.

• the anode is the positive electrode and the cathode is the negative electrode.

In an electrolytic cell,

• oxidation occurs at the anode and reduction occurs at the cathode.

• oxidation occurs at the cathode and reduction occurs at the anode.

Tags

NGSS.HS-PS2-5

Electrons always flow in the external circuit from

• anode to cathode

• cathode to anode

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5