Describe experiments that show both air and water are necessary for rusting. (Chemistry only; WS 2.2, 7, 3.5)

In the subtopic Corrosion and its prevention, this learning objective focuses on describe experiments that show both air and water are necessary for rusting. (Chemistry only; WS 2.2, 7, 3.5). Within Using materials, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include chemistry only, rusting, air, water, and WS 2.2. rusting means the corrosion of iron caused by the reaction with oxygen and water. Avoid students often think that rusting can occur without both air and water present in the experiments; instead emphasize that both air and water are essential for rusting to occur, and ensure to reference experiments that demonstrate this requirement. For exam answers, review experiments that demonstrate the necessity of both air and water for rusting, such as the use of iron nails in different environments.