Electrochemical Cells

Which energy conversion shown below takes place in a voltaic cell?

• Electrical to chemical

• Mechanical to chemical

• Mechanical to electrical

• Chemical to electrical

Tags

NGSS.HS-PS3-2

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

• transfer

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

• transfer

Tags

NGSS.HS-PS1-7

How do you complete the circuit when using 2 half-cells?

• acid bridge

• base bridge

• salt bridge

Tags

NGSS.HS-PS2-5

What type of energy is stored in batteries or food?

• Potential energy

• Thermal energy

• Chemical energy

• Mechanical energy

Tags

NGSS.HS-PS1-4

What is an electrolyte?

• The liquid part of the electrochemical cell

• The metal part of the electrochemical cell

• The part that measures the voltage in an electrochemical cell

Tags

NGSS.HS-PS2-5

Which would be an accurate half-equation at the cathode for aluminum?

• Al³⁺ + 3e^- --> Al

• Al --> Al³⁺ + 3e^-

• Al³⁺ --> Al + 3e^-

• Al + 3e^- --> Al³⁺

Tags

NGSS.HS-PS2-5

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-PS2-5

Reduction occurs at the

• anode

• cathode

Oxidation occurs at the

• anode

• cathode

Tags

NGSS.HS-PS2-5