Looking for online definition of HCO3 or what HCO3 stands for? HCO3 is listed in the World's most authoritative dictionary of abbreviations and acronyms
What is the Lewis dot structure for CH4? What is the Lewis structure of methane? What is the Lewis structure for carbon? What is the Lewis structure for CO2? What is the Lewis dot structure for CH2O? What is the Lewis structure of NI3?
检验二氧化碳的原理 二氧化碳通入澄清石灰水变混浊，是因为二氧化碳和石灰水反应生成碳酸钙沈淀：CO2+Ca(OH)2＝CaCO3↓+H2O 如果继续通入二氧化碳，混浊的石灰水又会变得清澈，这是因为通入的过量的二氧化碳与碳酸钙和水反应生成了可溶的碳酸氢钙： CaCO3+CO2+H2O＝Ca(HCO3)2 将石灰溶于水中所得透明的...
Is burning methane a chemical reaction? Write the balanced equation for the combustion of 2,4-dimethylpentane. Which of the following are the general products of a combustion reaction? A. C(s), O2, H2 B. C(s), H2O, O2 C. CO2, H2 D. CO2, H2O ...
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Oxygen is necessary for combustion The products of combustion are CO2, n H2O CO2 reacts with water to form unstable Carbonic acid. Density of hot air is lighter than that of cold air. It might create a circular movement of air inside the beaker when the air inside get heated. ...
What day is it today?今天是星期几? 4、用来询问日期。如: What's the date today?今天是几月几日? 5、用来询问时刻。如: What time is it now?现在几点钟? 6、用来对班级、年级提问。如: What class/grade are you in?你在哪一班/哪个年级?
What is carbonate's Lewis structure? Lewis Structure Polyatomic ions are composed of atoms that share electrons, but they have excess electrons that give them an electric charge. Carbonate has the formula CO3-2. Shared electrons in Lewis structures are represented by lines between atoms. ...
百度试题 结果1 题目What is the chemical symbol for water? A. H2O. B. CO2. C. O2. D. N2. 相关知识点: 试题来源: 解析 A。水的化学符号是 H2O,B 选项是二氧化碳,C 选项是氧气,D 选项是氮气。
较环保: 2h2 + o2 ==> h2o 氢气燃烧後所释放出来的是水,并不是二氧化碳(co2),而且没有其他任何破坏环境的气体如二氧化硫(so2) 。所以更环保。 2. 在特别的情况下提供清洁的水源: 如太空人的太空任务中,太空用的燃料部份为氢。燃烧後能化为水,为太空人提供可靠的水源。 其缺点是: 1. 需要特别的提取过程...