aA compound is a substance that can be split into two or more elements. Water is a compound because it can be split into its components, hydrogen and oxygen. 化合物是可以被分裂成两个或多个元素的物质。 因为它可以被分裂成它的组分、氢和氧气,水是化合物。[translate]...
A. material B. substance C. agent D. element 相关知识点: 试题来源: 解析 D 正确答案:D解析:element n.(化学)元素;成分,要素material n.材料,原料;素材,资料。substance n.物质;实质;要旨,基本内容;根据,理由。agent n.代理人,代理商;(化学)剂。
Water is a compound because it can be split into its components, hydrogen and oxygen.是什么意思?待解决 悬赏分:1 - 离问题结束还有 A compound is a substance that can be split into two or more elements. Water is a compound because it can be split into its components, hydrogen and oxygen....
In chemistry, a compound is a substance made up of two or more different chemicalelementscombined in a fixed ratio. When the elements come together, they react with each other and form chemical bonds that are difficult to break. These bonds form as a result of sharing or exchangingelectronsbe...
to form a compound. During a chemical reaction, two or more chemical molecules interact and change. Take a steel garbage can, for instance: when the iron in the garbage can interacts with the oxygen in the atmosphere, a chemical reaction occurs and the substance we call “rust” is created...
A substance that cannot be broken down into simpler substances by chemical means is called ___. A. a compound B. an element C. a mixture D. a solution 相关知识点: 试题来源: 解析 B。本题考查化学物质的分类。“an element”意思是元素,不能通过化学方法分解为更简单物质的就是元素。A 选项...
A substance that cannot be broken down into simpler substances by chemical means is called: A. Compound B. Element C. Mixture D. Alloy 相关知识点: 试题来源: 解析 B。“element”(元素)不能通过化学方法分解为更简单的物质。选项 A“compound”是化合物,可以分解;选项 C“mixture”是混合物,不...
A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmospherein such quantities as to affect humans, animals, vegetation, or material adversely(有害地). Air pollution requiresa very flexible definition that permits continuous change. When the first...
A substance that cannot be broken down into simpler substances by chemical means is called a(n) ___. A. element B. compound C. mixture D. solution 相关知识点: 试题来源: 解析 A。本题考查化学物质的分类。选项 B“compound”是化合物,可以通过化学方法分解为更简单的物质;选项 C“mixture”是混...
A natural product is a chemical compound or substance produced Search Retained Digital Accommodating Ureteroscope Through Percutaneous Nephrolithotomy. Posted onJanuary 11, 2025 Reply Regardless of this, they continue being intentionally introduced by people. Understanding the causes that determine the prospe...