
ChemicalBook
ChemicalBook是一家致力于为化学行业用户提供最有价值信息的资源平台,在这里可以使用中文名称,CAS号,英文名称,分子式,分子量,MDL号,EINECS号,结构式等多种方式检索日常工作中需 …
Chemical(英语单词)_百度百科
Chemical是英语中的常用术语,兼具名词和形容词词性,发音为 [ˈkemɪk (ə)l](英/美式),复数形式为chemicals。 作为名词指代化学品、化学制品或成瘾药物;作为形容词描述与化学反应、化学过程相 …
CHEMICAL中文 (简体)翻译:剑桥词典 - Cambridge Dictionary
Sodium chloride is the chemical name for common salt. All chemical weapons facilities will be deactivated. Estimates of the amount of money needed to decontaminate the heavily polluted …
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PubChem
Search and explore chemical information in the world's largest free chemistry database. Search chemicals by name, molecular formula, structure, and other identifiers.
Chemical element | Definition, Origins, Distribution, & Facts - Britannica
Jan 9, 2026 · A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is …
CHEMICAL Definition & Meaning - Merriam-Webster
The meaning of CHEMICAL is of, relating to, used in, or produced by chemistry or the phenomena of chemistry. How to use chemical in a sentence.
Chemical Portal - 化学在线教育
化学之窗:化学爱好者和专业人士的聚集地。包含化学工具、元素周期表、单元转换器等。
What Is a Chemical? Definition and Examples - Science Notes and …
Oct 15, 2023 · A chemical is any substance with a definite composition and distinct properties. All matter is made of chemicals, regardless of whether it is natural or synthetic.