For the oxide Fe2O3:
- crystalline structure: rombohedral
- density: 5,242 g/cm3
- melting point: 1 566 0C
Because iron oxide is not iron and the chemical/physical properties of substances are different.
The evidence of chemical reaction in the rusting of an iron nail is a color change. This is due to the formation of iron oxide, which is the reaction between iron and oxygen.
Density and melting point are different.
The color change of iron wire when it rusts is a chemical change because it involves a reaction with oxygen in the air to form iron oxide. This new substance has different properties than the original iron.
Rusting of iron is a chemical change because it involves a chemical reaction between iron, oxygen, and water to form iron oxide (rust). This reaction leads to the formation of a new substance with different properties from the original iron.
Because iron oxide is not iron and the chemical/physical properties of substances are different.
Iron oxide is considered a neutral oxide because it does not have acidic or basic properties. It is a compound that is formed by the reaction of iron and oxygen.
The evidence of chemical reaction in the rusting of an iron nail is a color change. This is due to the formation of iron oxide, which is the reaction between iron and oxygen.
No. By definition iron oxide is a compound of iron and oxygen.
Density and melting point are different.
The color change of iron wire when it rusts is a chemical change because it involves a reaction with oxygen in the air to form iron oxide. This new substance has different properties than the original iron.
The rusting of iron is a chemical change. It involves the reaction of iron with oxygen in the presence of moisture to form iron oxide (rust), which has different chemical properties compared to the original iron.
The formation of rust from iron and oxygen is a chemical reaction. This is because the iron reacts with oxygen in the air to form a new compound, iron oxide (rust), which has different chemical properties from the original iron.
No, because Iron oxide is not a mixture of Iron and Oxygen. It is a compound in which iron and Oxygen have been chemically combined to create a new substance, which has different chemical and physical properties form either of the two elements which it is made from.
Fe2O3 is named iron oxide because it contains Fe+ ions.
Fe2O3 ---------
No, a car rusting is a chemical change because a new substance is formed. Iron will react with oxygen (found in water) forming iron oxide. The product, iron oxide, has different properties from both iron and oxygen. A "chemical change" describes any reaction where a new substance is formed. However, if a substance just changes forms, it is a physical change. For example, water freezing is a physical change.