Why does the weight of iron increase on rusting?
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☑ The main cause of corrosion is the presence of moisture, carbon dioxide, and oxygen in the air. When iron or any other metal oxidizes, oxygen from the air combines with the iron to make rust or iron oxide. So, the weight of the bar increases, due to the increased weight of oxygen which has combined with the iron.
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The main cause of corrosion is the presence of moisture, carbon dioxide, and oxygen in the air. When iron or any other metal oxidizes, oxygen from the air combines with the iron to make rust or iron oxide. So, the weight of the bar increases, due to the increased weight of oxygen which has combined with the iron.
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