Chemistry DictionaryDefinition of pH What is pH? The pH scale is alternatively sometimes called the pH-acid-base scale and sometimes just the acid-base scale. In neutral solutions, i.e. those that are neither acidic nor basic, pH = 7.0. Acidic solutions are those with pH less than 7,...
解析 A。“pH”是“Potential Hydrogen”的缩写,表示“氢电位”或“酸碱度”。选项 B“Power of Hydrogen”是“氢的力量”;选项 C“Proportion of Hydrogen”是“氢的比例”;选项 D“Partial Hydrogen”是“部分氢”,都不符合“pH”的含义。反馈 收藏 ...
In the field of chemistry, “pH” stands for ___. A. Power of Hydrogen B. Potential of Hydrogen C. Pressure of Hydrogen D. Presence of Hydrogen 相关知识点: 试题来源: 解析 B。“pH”是“Potential of Hydrogen”的缩写,即氢离子浓度指数。选项 A、C、D 都是错误的组合。反馈 收藏 ...
ChemistryScientific ConceptsHigh School StudentsScience InstructionScience ActivitiesThis work describes an alternative approach for introducing the concept of pH in high school. We develop an experimental protocol to demonstrate in classroom as pH affects the life of microorganisms. At the same time, we...
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Google Share on Facebook phallin (ˈfælɪn) n (Chemistry)cheman element that is found in the death cap toadstool that was originally suspected as being the poisonous essence of the fungus Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers...
power of hydrogen potential of hydrogen proportion of hydrogen pressure of hydrogen相关知识点: 试题来源: 解析 答案:power of hydrogen。本题考查化学领域常见缩略词 pH 的含义。pH 是“氢的浓度指数”,可以理解为 power of hydrogen。其他选项都是错误的表述。反馈 收藏 ...
MM Darj,ER Malinowski - 《Analytical Chemistry》 被引量: 98发表: 1996年 Conjugated Polymer Amplified Far-Red/Near-Infrared Fluorescence from Nanoparticles with Aggregation-Induced Emission Characteristics for Targeted In Vivo I... Fluorescence-amplified far-red/near-infrared (FR/NIR) nanoparticles (NPs...
盐酸（hydrochloric acid）是氯化氢（HCl）的水溶液，工业用途广泛。盐酸为无色透明的液体，有强烈的刺鼻气味，具有较高的腐蚀性。浓盐酸（质量分数约为37%）具有极强的挥发性，因此盛有浓盐酸的容器打开后氯化氢气体会挥发，与空气中的水蒸气结合产生盐酸小液滴，使瓶口上方出现酸雾。盐酸是胃酸的主要成分，它能够...