| A | B |
|---|
| more active metal | a metal that replaces another metal from its compounds |
| corrosion | the wearing away of metals |
| verdigris | the green coating on corroded copper |
| plating | coating one metal with another metal |
| galvanized iron | iron that is plated with zinc |
| electroplating | using an electric current to plate one metal onto another metal |
| electolyte | a compound that forms ions when it dissolves |
| electrode | a rod that allows an electric current to enter or leave an electrolyte solution |
| oxidation | losing electrons in a chemical reaction |
| reduction | gaining electrons in a chemical reaction |
| ionization | the formation of ions |
| electrochemical cell | a cell that uses chemical energy to produce electric currents |
| hard water | water that contains calcium or magnesium salts |
| soften | remove the metallic ions from hard water |
| temporary hard water | water containing bicarbonate salts; water that needs chemical softners |
