Redox Reaction Post-Lab Flashcard

Front

What is a redox reaction?

Back

A redox reaction is a chemical reaction that involves the transfer of electrons between two species, resulting in changes in oxidation states.

Front

What is oxidation?

Back

Oxidation is the process in which an atom, ion, or molecule loses electrons, resulting in an increase in oxidation state.

Front

What is reduction?

Back

Reduction is the process in which an atom, ion, or molecule gains electrons, resulting in a decrease in oxidation state.

Front

What is an oxidizing agent?

Back

An oxidizing agent is a substance that causes oxidation by accepting electrons and is itself reduced in the process.

Front

What is a reducing agent?

Back

A reducing agent is a substance that causes reduction by donating electrons and is itself oxidized in the process.

Front

What is the oxidation state of zinc in zinc metal?

Back

The oxidation state of zinc in zinc metal (Zn) is 0.

Front

What is the oxidation state of copper in copper (II) sulfate?

Back

The oxidation state of copper in copper (II) sulfate (CuSO4) is +2.

Front

What happens to the color of copper (II) sulfate solution when zinc is added?

Back

The color of the copper (II) sulfate solution changes from blue to colorless as copper ions are reduced to copper metal.

Front

What is a spectator ion?

Back

A spectator ion is an ion that does not participate in the chemical reaction and remains unchanged in the solution.

Front

What is the balanced equation for the reaction between zinc and copper (II) sulfate?

Back

The balanced equation is: Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s).