Electrochemical Series and Reactions

The video explains the electrochemical series, a ranking of metals based on their ability to lose electrons, which affects voltage production. Hydrogen's electrode potential is used as a reference point. The series helps predict electron flow and displacement reactions, where more reactive metals displace less reactive ones. Redox reactions, involving simultaneous oxidation and reduction, are also discussed.

What does the electrochemical series help us understand about metals?

• Their ability to conduct heat

• Their ability to produce voltage

• Their melting point

• Their color

In the electrochemical series, what is the significance of hydrogen's electrode potential?

• It is the lowest potential

• It is not used in measurements

• It is the highest potential

• It acts as a reference point

How are electrode potentials measured?

• In amperes

• In ohms

• In volts

• In watts

When comparing two metals, electrons will flow from the metal with:

• Higher melting point to lower

• Lower electrode potential to higher

• Higher electrode potential to lower

• Lower density to higher

Which direction do electrons move between zinc and copper?

• From zinc to copper

• From copper to zinc

• From copper to lead

• From zinc to lead

What happens when a more reactive metal is mixed with ions of a less reactive metal?

• The more reactive metal displaces the ions of the less reactive metal

• The less reactive metal displaces the more reactive one

• No reaction occurs

• The more reactive metal dissolves

Why does iron form a copper coating in a copper sulfate solution?

• Copper is more reactive than iron

• Iron is less reactive than copper

• Iron is more reactive and displaces copper ions

• Copper ions dissolve iron

What is a redox reaction?

• A simultaneous oxidation and reduction process

• A reaction that does not involve electron transfer

• A reaction where only oxidation occurs

• A reaction where only reduction occurs

In the electrochemical series, which metal will electrons move towards?

• The metal with a more negative electrode potential

• The metal with a lower melting point

• The metal with a higher density

• The metal with a more positive electrode potential

What does a greater difference in electrode potential indicate?

• Slower electron movement

• Faster electron movement

• No electron movement

• Constant electron movement