Its called oxidation. its when oxygen reacts with a metal--its a chemical reaction...cuz h2o--theres oxygen in waterWhat causes a nail to go rusty when placed in a liquid substance? and why?
Iron Oxide forms on the nail, because the metal breaks down. The water or liquid breaks down the elements in teh nailWhat causes a nail to go rusty when placed in a liquid substance? and why?
Water.
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