When iron rusts, it is a(n) ___. A. chemical reaction B. physical change C. electrical reaction D. biological change 相关知识点: 试题来源: 解析 A。解析:铁生锈是化学反应,生成了新物质铁锈。选项 B 物理变化没有新物质生成,不符合。选项 C 电反应与题目无关。选项 D 生物变化不符合铁生锈...
When iron rusts, it is a chemical change. What happens during this process? A. The color remains the same. 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 ...
What reacts with iron to form rust? What dissolves rust on metal? What is OH's chemical name? Is rust the result of a chemical reaction? How is rust a chemical reaction? What is the chemical name for HCH3CO2? What is the chemical name for salt?
Another common chemical reaction is rusting. When iron is exposed to air and moisture, it slowly turns into rust. Rust is a different substance from iron. There are also many chemical reactions that happen in our bodies. For example, when we digest food, chemical reactions break down the ...
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust.
How is rust a chemical reaction? What is formed when an atom loses or gains an electron? What is created when chemical reactions join atoms together? What are the chemical properties of transition metals? What reacts with chlorine? What is the definition of a chemical in science?
In a chemical reaction, iron reacts with oxygen to form rust. What is the English name for iron? A. Copper B. Aluminum C. Iron D. Silver 相关知识点: 试题来源: 解析 C。本题考查铁的英文名称。选项 A 是铜,选项 B 是铝,选项 D 是银。只有选项 C 是铁。
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 such as oxygen ab...
A. A reaction that produces rust. B. A process by which plants make food. C. A reaction that only happens in our bodies. D. A chemical reaction when something burns. 相关知识点: 试题来源: 解析 B。原因:文中提到“Chemical reactions are also involved in photosynthesis, the process by whi...
When an iron nail rusts, it is a ___. A. 声同响到处取上声同响到处取上chemical reaction声同响到处取上声同响到处取上 B. 红打厂想查领料选处别红打厂想查领料选处别physical change红打厂想查领料选处别红打厂想查领料选处别 C. 每指个见红厂离重每指个见红厂离重biological process每...