60 Questions
What is the primary function of an electric cell?
To convert chemical energy into electrical energy
What is a battery?
A group of two or more electric cells connected together
What is the purpose of an electrode in an electric cell?
To allow electricity to enter or leave a medium
What is the primary difference between electric cells and mechanical generators?
Electric cells do not have moving parts
What is the purpose of the lemon in the simple lemon battery experiment?
To facilitate a chemical reaction
What is a half cell?
One part of a two-part electrochemical cell
What is the purpose of the zinc nail in the simple lemon battery experiment?
To act as an electrode
What is the system in an electric cell?
The chemical components and reactions
What is the purpose of the copper nail in the simple lemon battery experiment?
To act as an electrode
What is the result of the chemical reaction in an electric cell?
Electrical energy
What is the purpose of the U-tube filled with salt solution in the zinc-copper cell?
To act as a salt bridge, allowing the flow of ions between the two solutions
What happens to the zinc metal at the anode in the zinc-copper cell?
It loses electrons and becomes zinc ions
What is the function of the lemon juice in the setup with the copper and zinc nails?
It acts as an electrolyte, facilitating the flow of electrons
What is the purpose of the ammeter or voltmeter in the zinc-copper cell?
To measure the electric current or voltage
What happens to the copper ions at the cathode in the zinc-copper cell?
They gain electrons and become copper metal
What is the role of the copper plate in the zinc-copper cell?
It acts as a cathode
What is the purpose of the zinc plate in the zinc-copper cell?
It acts as an anode
What is the result of the chemical reactions occurring at the electrodes in the zinc-copper cell?
The flow of electrons through the external circuit
What is the purpose of the LED light in the zinc-copper cell?
To indicate the occurrence of a chemical reaction
What is the function of the zinc sulfate solution in the zinc-copper cell?
It acts as an electrolyte
What type of energy is converted into electrical energy in an electric cell?
Chemical energy
What is the term for a device used to connect the oxidation and reduction half-cells of a voltaic cell?
Salt bridge
What is the purpose of the zinc and copper nails in the simple lemon battery experiment?
To facilitate chemical reactions
What is the characteristic of electric cells that distinguishes them from mechanical generators?
Chemical reactions
What is the term for a substance that produces an electrically conducting solution when dissolved?
Electrolyte
What is the overall function of the system in an electric cell?
To generate electrical energy
What is the term for a conductor through which electricity enters or leaves a medium?
Electrode
What is the purpose of connecting the copper nail to the LED light in the simple lemon battery experiment?
To complete the circuit
What is the characteristic of electric cells that allows them to power electric circuits?
They convert chemical energy into electrical energy
What is the term for a group of two or more electric cells connected together?
Battery
What is the primary function of the copper sulfate solution in the zinc-copper cell?
To provide copper ions for the reaction
What is the purpose of completing the external circuit in the zinc-copper cell?
To facilitate the flow of electrons
What happens to the electrons at the anode in the zinc-copper cell?
They are lost by the zinc metal
What is the purpose of the salt bridge in the zinc-copper cell?
To allow the flow of ions between the solutions
What is the direction of electron flow in the zinc-copper cell?
From the zinc electrode to the copper electrode
What is the role of the zinc sulfate solution in the zinc-copper cell?
To facilitate the flow of ions
What is the net result of the chemical reactions occurring at the electrodes in the zinc-copper cell?
Flow of electrons
What is the purpose of connecting the zinc plate to the negative terminal of the ammeter or voltmeter?
To measure the voltage of the cell
What is the function of the copper plate in the zinc-copper cell?
To provide a site for copper ions to deposit
What is the primary difference between the zinc-copper cell and the simple lemon battery?
The materials used for the electrodes
What is the primary function of the acid in the lemon juice in the simple lemon battery experiment?
To facilitate the flow of electrons between the electrodes
What is the role of the zinc sulfate solution in the zinc-copper cell?
To act as an electrolyte and facilitate the flow of electrons
What is the purpose of the salt bridge in the zinc-copper cell?
To connect the two half-cells and complete the circuit
What type of reaction occurs at the zinc electrode (anode) in the zinc-copper cell?
Oxidation reaction
What is the direction of electron flow in the zinc-copper cell?
From the zinc electrode to the copper electrode
What is the purpose of connecting the copper plate to the positive terminal of the ammeter or voltmeter?
To measure the voltage generated by the cell
What is the net result of the chemical reactions occurring at the electrodes in the zinc-copper cell?
The generation of electrical energy
What is the primary function of the U-tube filled with salt solution in the zinc-copper cell?
To connect the two half-cells and complete the circuit
What occurs at the copper electrode (cathode) in the zinc-copper cell?
Copper ions from the solution gain electrons and deposit as copper metal on the electrode
What is the purpose of completing the external circuit in the zinc-copper cell?
To allow the flow of electrons and generate electric current
Which component of an electric cell is responsible for generating electricity through chemical reactions?
Chemical components
What is the primary function of the copper nail in the simple lemon battery experiment?
To act as an electrode
Which of the following is a characteristic of electric cells that distinguishes them from mechanical generators?
Use of chemical reactions
What is the term for the process of generating electricity through chemical reactions within an electric cell?
Electrochemical reaction
Which of the following is a requirement for an electric cell to function?
Connection of the electrodes to a medium
What is the primary function of the electrolyte in an electric cell?
To produce an electrically conducting solution
Which of the following is a characteristic of electric cells that allows them to power electric circuits?
Ability to generate electricity
What is the primary function of the zinc nail in the simple lemon battery experiment?
To act as an electrode
Which of the following is NOT a characteristic of electric cells?
Presence of moving parts
What is the primary function of the system in an electric cell?
To achieve a specific function
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