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B. No chemical reaction occurs. C. A new substance is formed. D. The mass of iron decreases. 相关知识点: 试题来源: 解析 C。铁生锈是化学变化,在这个过程中会形成新物质。A 选项颜色会改变,错误;B 选项有化学反应发生,错误;D 选项铁生锈质量会增加,错误。反馈 收藏 ...
Rust formation cannot be stopped easily, but metals can be treated to resist the most damaging effects. Some are protected by water-resistant paints, preventative coatings or other chemical barriers, such as oil. It also is possible for one to reduce the chances of rust forming by using a de...
Oxidation is a chemical reaction involving the loss of electrons, affecting various substances, while rust is a specific type of oxidation that occurs on iron or steel, forming iron oxide.
As an example, consider rust formation. When rust forms, the metal iron reacts with oxygen in the air to form a new compound, iron oxide (rust). This chemical reaction may be expressed by the following unbalanced chemical equation, which may be written either using words or using the chemi...
What happens when chemical bonds break and new bonds form? An atom loses one of its neutrons. What changes about the atom? What is the most dangerous chemical reaction? How do you draw chemical reactions? Is rust the result of a chemical reaction?
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What Is Rust? Rust is a form of corrosion that primarily affects iron and its alloys, such as steel. The chemical reaction between iron, oxygen, and water forms iron oxide, commonly known as rust. More specifically, it’s when elements, like iron, easily lose electrons, and an element su...
Corrosion is a chemical process that deteriorates materials due to environmental reactions, while rust is a specific type of corrosion affecting iron and its alloys.
Chemistry is the branch which deals with the detailed study of matter, its properties, how and why atoms/substanced combine or separate to form other substances. Understand all the basic concepts of Organic, Inorganic, and Physical Chemistry with detaile