Helium 相关知识点: 试题来源: 解析 C。解析:本题考查二氧化碳在植物光合作用中的作用以及词汇辨析。植物通过光合作用制造食物需要二氧化碳。A选项“Oxygen”是氧气,是光合作用的产物而非原料;B选项“Carbon monoxide”是一氧化碳,不是植物光合作用的原料;D选项“Helium”是氦气,与植物光合作用无关。在英语知识点方面...
网络氦气是惰性气体;氦气是钝气 网络释义
This chemical is a gas that is used to fill balloons. Helium Oxygen Nitrogen Carbon dioxide相关知识点: 试题来源: 解析 答案:Helium。“Helium”是氦气,用于填充气球。“Oxygen”是氧气;“Nitrogen”是氮气;“Carbon dioxide”是二氧化碳,都不是主要用于填充气球的气体。反馈 收藏 ...
2) Helium is a noble gas. 氦气是惰性气体。3) monoatomic gas 单原子气体4) monatomic ideal gas 单原子理想气体 1. After four quantities of the monatomic ideal gas and quantum gas were calculated,the utility of N-E-V distribution will be verified. 本文推导了统计热力学中粒子数N、能量E...
1) Helium is a noble gas.氦气是惰性气体。2) noble gas 惰性气体 1. The new method of determining groundwater supply temperature and rainfall by dissolved noble gases; 测定地下水补给温度与降雨量的最新方法——惰性气体法 2. Theoretical calculation of the noble gas transport properties; 惰性...
必应词典为您提供Helium-is-a-monatomic-gas的释义,网络释义: 氦是单原子气体;氦是单原子气体收藏;
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Which element is a noble gas? A. 标效车是接电克它标效车是接电克它Helium标效车是接电克它标效车是接电克它 B. 制需造料矿数把就制眼制需造料矿数把就制眼Lithium制需造料矿数把就制眼制需造料矿数把就制眼 C. 越记律查说被百越记律查说被百Boron越记律查说被百越记律查说被百 D....
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Consider the substance: helium gas. Classify this substance as a pure substance or a mixture. Explain or prove your answer. Give three reasons why carbon is preferred over hydrogen in the relative atomic mass of an atom. Why, for the ionization of gas, is lower pressure more favored than ...