That chemical reaction actually occurs in the CF 2O system was substantiated by experiments in the presence of O 2. If no chemical reaction had occurred, —φ{O 3} should have dropped to 0, but it only dropped to 1.1. The rate coefficients relative to the O( 1D)-N 2O reaction were...
44.aselective reaction usually occurs only with the substances of interest.选择性反应通常只发生在感兴趣的物质。F 45.quantitativetests are more complicated and reliable than qualitative analysis.定量测试比定性分析更为复杂和可靠。T 46.quantitativemeasurement can also serve as qualitative measurement in mod...
A. The color remains the same. B. No chemical reaction occurs. C. A new substance is formed. D. The mass of iron decreases. 相关知识点: 试题来源: 解析 C。铁生锈是化学变化,在这个过程中会形成新物质。A 选项颜色会改变,错误;B 选项有化学反应发生,错误;D 选项铁生锈质量会增加,错误。
Fossil fuels are rich in carbon. When they are burned, a chemical reaction occurs that uses up the fuel and oxygen to create energy, water, and carbon dioxide. This reaction is known as combustion.Natural gas is the cleanest-burning fossil fuel. Coal and oil are more chemically complicated ...
In other words: if a reaction can be divided into several steps, the reaction heat of each step will be the same as the reaction when the reaction occurs. Apply this principle to solve the following problems: We know: C (s) + O2 (g) = CO2 (g) delta H = -393.5 kJ · mol - ...
Inside the human body, the chemical reaction occurs and releases heat as well as some other forms of energy. The energy that is released by chemical... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our exper...
2.2. Main chemical reactions generated in the process In the process of ammonia oxidation within the CONV the following reaction occurs (Equation (1)) [11]:14NH3+5O2→4NO+6H2O+216,7kcal/mol[11] On the other hand, reaction balances originate during nitrogen monoxide oxidation and weak acid...
in a process of any planet-occurring chemical reaction, when a chemical bond is formed, the interatomic bonding energy begin to decay due to the combined effects of the law of planet-based process of mass-decay-trended elemental transmutation and of the law of the non-equivalent interatomic ma...
These decomposers grow rapidly and use a great deal of oxygen during their growth.This leads to a depletion of oxygen as the decomposition process occurs. A lack of oxygen can kill aquatic organisms. 这些分解器生长迅速,在生长过程中使用大量的氧气。这会导致分解过程发生时氧气的消耗。缺氧会杀死水生...
While at the same time as the interface, there is no chemical reaction occurs, it can also be seen as the same 翻译结果5复制译文编辑译文朗读译文返回顶部 Because simultaneously the contact surface place has not had the chemical reaction, it also may regard as is same ...