Tin cans are not made entirely of tin, and the name "tin can" would be more accurate if it were "tinned can". The can is actually made of steel, plated on the outside with tin. The steel gives the can strength, and the tin plating helps to protect the steel from rusting. As your question indicates, there are situations in which the tin is not entirely successful in preventing rust. Aluminum cans are more naturally resistant to corrosion, and are also more easily made, because aluminum is more easily formed into a can than steel is.
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Yes, tin, Sn (Stannum), is a pure metal element, atom number 50 in the Periodic Table.
The tin in tin cans rusted rapidly unless protected by a coating. Modern "tin cans" are not made from tin and so they do not have this problem. Now they are made of aluminum.
Yes, tin will go corrode and go rusty if left to the elements.
Iron can are electroplated with tin to prevent the cans from rusting. Tin is a metal that resists rust.
A tin used for food packaging is actually tin-plated steel. So if the tin wears off, the steel beneath will rust.
A tin used for food packaging is actually tin-plated steel. So if the tin wears off, the steel beneath will rust.
Pure Tin is a metallic element with the symbol Sn.Tin is always pure. Tin is not a mixture, but it may be a part of a mixture, like in bronze
Tin cans are not made entirely of tin, and the name "tin can" would be more accurate if it were "tinned can". The can is actually made of steel, plated on the outside with tin. The steel gives the can strength, and the tin plating helps to protect the steel from rusting. As your question indicates, there are situations in which the tin is not entirely successful in preventing rust. Aluminum cans are more naturally resistant to corrosion, and are also more easily made, because aluminum is more easily formed into a can than steel is.
The can is made of steel, thinly coated with tin or another non corrosive metal. If the can gets scratched, then the steel can start to rust.
Pure substance
Because the probable tin coating is porous or damaged.
Rust is an iron oxide.
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Australian coins will not rust since none of them contain any iron, they may develop a patina or become discoloured if left in a moist environment. The money tin may rust though.
Tin actually will corrode. It is not actually all that resistant to corrosion. It is, however, less susceptible to corrosion than iron. That may be where the myth that it doesn't rust comes from.