Besi ialah sejenis logam. Oleh itu, besi memiliki sifat permukaan yang berkilau. Walau bagaimanapun besi mudah berkarat. Mengapa? ​

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

What are the similarities of physical and chemical change ?

State one important difference between a physical change and a chemical change?