What is the chemical equation for the reaction? A. H₂ + CuO = Cu + H₂O₂ B. H₂ + CuO = Cu + O₂ C. H₂ + CuO = Cu + H₂O D. H₂ + Cu₂O = Cu + H₂O 相关知识点: 试题来源: 解析 C。中文解析:氢气还原氧化铜的化学方程式为 H₂ + CuO = Cu +...
This is because a chemical reaction takes place causing a change in the milk and the nail. In fact, regular body processes such as respiration and digestion are also chemical reactions. A chemical reaction is expressed using a chemical equation. Let’s dive in and learn about chemical ...
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of th
Practise Questions on Chemical Reaction and Equation MCQ Q1:When Ag is exposed to air, it gets a black coating of (a) AgNO3 (b) Ag2O (c) Ag2S (d) Ag2CO3 Q2:In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide...
A. products to reactants. B. reactants to products. C. catalysts to reactants. D. products to catalysts. 相关知识点: 试题来源: 解析 B。解析:在化学反应方程式中,箭头是从反应物指向产物。选项 A 方向错误。选项 C 和 D 催化剂不是反应的主要物质,箭头不指向它们。反馈 收藏 ...
chemical equation (redirected fromChemical equations) Medical Encyclopedia Related to Chemical equations:Chemical Reactions n (Chemistry) a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product ...
The chemical equation for the reaction between sodium and chlorine is___. A. Na+Cl₂=NaCl₂ B. 2Na+Cl₂=2NaCl C. Na+2Cl₂=NaCl₂ D. 2Na+2Cl₂=2NaCl₂ 相关知识点: 试题来源: 解析 B。钠和氯气反应生成氯化钠,化学方程式为 2Na+Cl₂=2NaCl。A 选项产物氯化钠的化学式错误...
You are given chemical equation: Cl2+H2OHCl+HClO,in the reaction,H2O acts as ( ) A. Oxidizing agent B. reducing agent C. not only oxidizing agent but also reducing agent D. neither oxidizing agent nor reducing agent 相关知识点:
Which of the following is the correct chemical equation for the reaction between hydrogen and oxygen? A. H₂+O₂=H₂O B. 2H₂+O₂=2H₂O C. H₂+2O₂=2H₂O D. 2H₂+2O₂=4H₂O 相关知识点: 试题来源: 解析 B。氢气和氧气反应生成水,化学方程式为 2H₂+O₂...
corresponding µ values in the tables and then to compare the potentials on the right and left side of the reaction equation. job-stiftung.de 如果我们希望发现一个从前不知道的过程能自动地进行,我们只要在表中找出 相应的μ 值,然后比较反应方程的左右 两边的化学势值。 job-stiftung.de Such use...