Carbon is a(n)___ while carbon dioxide is a compound.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...
瑞鸿网词典双语例句Carbon is an element, while carbon dioxide is a compound.碳是一种(化学)元素, 而二氧化碳则是一种化合物.
Carbon dioxide is a compound where two oxygen atoms are connected to a carbon atom. 1normal temperatures it is a colorless gas that exists _2 in the Earth's atmosphere.Carbon dioxide is an important part of the carbon cycle and essential for life on Earth. Without it,3 on our planet wou...
【题目】Carbon DioxideCarbon dioxide is a compound in which two oxygen atoms are connected to a carbon atom.At normal temperatures it is a colourless gas. Carbon dioxide is an important part of the carboncycle and essential for life on Earth. _1 Plants use the sunlight and take up the ...
百度试题 结果1 题目Carbon is a(n) ___ while carbon dioxide is a compound. A. material B. 。 substance C. agent D. 。 E. lement 相关知识点: 试题来源: 解析 d 反馈 收藏
Carbon dioxide is not found on the periodic table of elements. This is because it's a compound made from the atoms of more than one element. A carbon... Learn more about this topic: Carbon Dioxide | Definition, Formula & Properties ...
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Disclosed is a carbon dioxide absorbent formulation comprising: a pharmaceutically acceptable hydroxide essentially free of sodium, potassium and barium hydroxides; calcium and/or magnesium chloride; a hardening agent; and a non-film-forming binding agent.クラーク,マイケルジョン...
Carbon is a plentiful and versatile element. It can combine in ways that create compounds as hard as diamond, or can combine to make slippery substances like graphite. It is the sixth most abundant element present in the entire universe. ...
What is the formula for the compound formed from calcium and oxygen? What is the empirical formula for C2H4O2? In carbon dioxide what element is combined with carbon? What is the name for the compound with the formula FeO? What is the formula for silicon dioxide?