Reactivity and Function of Voltaic Cells

The video tutorial explains the operation of a voltaic cell, which functions like a homemade battery. It describes how electricity is produced through the reactivity of different metals, such as copper and silver, using Table J from the chemistry reference table. The tutorial details the chemical reactions occurring in the cell, including electron transfer and ion movement, and explains the processes at the electrodes. It concludes with how the voltaic cell maintains continuous electricity flow.

What is a voltaic cell commonly compared to?

• A light bulb

• A homemade battery

• A wind turbine

• A solar panel

Which two metals are mentioned as having different reactivity levels in a voltaic cell?

• Aluminum and tin

• Iron and zinc

• Copper and silver

• Gold and platinum

According to the chemistry reference table, which metal is more reactive?

• Silver

• Copper

• Platinum

• Gold

In the chemical reaction of a voltaic cell, what does solid copper (Cu) become?

• Cu negative ions

• Liquid copper

• Cu positive ions

• Solid silver

What happens to silver ions (Ag+) in the voltaic cell reaction?

• They gain electrons

• They dissolve in water

• They form a gas

• They lose electrons

Where do electrons travel from and to in a voltaic cell?

• From gold to platinum

• From silver to copper

• From copper to silver

• From zinc to iron

What is the result of silver ions gaining electrons in the voltaic cell?

• Formation of gaseous silver

• Decrease in mass of the copper electrode

• Increase in mass of the silver electrode

• Formation of liquid silver

What happens to the copper electrode during the operation of a voltaic cell?

• It becomes a gas

• It decomposes

• It remains unchanged

• It gains mass

What is the role of the salt bridge in a voltaic cell?

• To increase the voltage

• To maintain the flow of electricity by allowing ion movement

• To allow the flow of electrons

• To stop the flow of electricity

What is the final answer choice mentioned in the transcript?

• Choice two

• Choice one

• Choice three

• Choice four