what happens to a nail in dry air containing calcium chloride
Answers
Answer:
The layer of oil will prevent the entry of air in water. In the test tube C put some anhydrous calcium chloride and cork it. Anhydrous calcium chloride is drying agent. ... But the nail present in test tube A rusts because in test tube A the nail was exposed to both air and water.19-Jan-2018
Answer:
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Here is the word equation for the reaction:
iron + water + oxygen → hydrated iron(III) oxide
Iron and steel rust when they come into contact with water and oxygen. Both water and oxygen are needed for rusting to occur. In the experiment below, the nail does not rust when air (containing oxygen) or water is not present
Explanation: