It all has to do with rate of oxidisation; what we call burning is a very rapid chemical reaction, the faster it is, the more heat it releases in a certain amount of time. by baby girl23 and friend
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
melting any metal is physical. rusting iron is chemical
Rusting is a chemical process where iron reacts with oxygen in the presence of water to form iron oxide. This is a slow process compared to traditional combustion, such as burning wood, where a rapid chemical reaction releases heat and light energy. Rusting does not produce flames or a dramatic release of energy like combustion.
When an iron nail rusts, it actually gains mass. Rusting is a chemical reaction between iron, oxygen, and moisture, producing iron oxide (rust). During this process, the iron combines with oxygen from the air, which adds to the overall mass of the nail. While rusting is not a form of burning, it does involve an oxidation reaction similar to combustion.
Both are examples of oxidation.
Meting ice: you start with H2O and finish with H2O
iron bending different from iron rusting
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
Rusting of a paper clip is a chemical change. It involves the iron in the paper clip reacting with oxygen in the air to form iron oxide (rust). This change is not reversible and results in a new substance with different properties.
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
Melting ice is a physical change as it involves a change in state from solid to liquid without changing the chemical composition. Rubbing a marker on paper involves a physical process of transferring ink from the marker to the paper, without any new chemical reactions occurring. Burning a candle is a combustion reaction where the wax reacts with oxygen to produce heat, light, carbon dioxide, and water vapor. Rusting iron is a chemical process where iron reacts with oxygen and moisture in the air to form iron oxide.
Rusting of iron is chemical. It is the combination of oxygen with the iron, creating a different chemical: rust or iron oxide.
no its chemical. physical changes is where the object chemical matter is not altered. ex- cuting a piece of paper is physical because you still have a piece of paper but burning the paper is chemical because a chemical change has taken place.
melting any metal is physical. rusting iron is chemical
Because it's the "burning" of iron in oxygen. It's just slow.
=>Rusting of iron =>Melting of sugar =>Burning of paper