Penny Battery Flashcard

Front

What is an anode?

Back

The anode is the electrode where oxidation occurs in a battery, typically made of a material like zinc.

Front

What does it mean to oxidize?

Back

To oxidize means to remove electrons from an element, often resulting in a change in its chemical state.

Front

What is an ion?

Back

An ion is an atom or molecule that has an unequal number of protons and electrons, resulting in a net electrical charge.

Front

Where do electrons move in a penny battery?

Back

In a penny battery, electrons move from the anode (zinc) to the cathode (copper wire).

Front

What is the role of an electrolyte in a battery?

Back

The electrolyte facilitates the movement of ions and is responsible for producing electricity in a battery.

Front

What is a cathode?

Back

The cathode is the electrode where reduction occurs in a battery, typically made of a material like copper.

Front

What is the chemical reaction that occurs at the anode?

Back

At the anode, zinc oxidizes, releasing electrons and forming zinc ions.

Front

What is the chemical reaction that occurs at the cathode?

Back

At the cathode, copper ions gain electrons and are reduced to form solid copper.

Front

What is the function of lemon juice in a penny battery?

Back

Lemon juice acts as an electrolyte, allowing ions to move between the electrodes.

Front

What is the significance of hydrogen gas in a battery?

Back

Hydrogen gas can be produced during the electrochemical reactions in a battery, indicating a chemical change.