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...
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 +...
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...
The chemical equation for the reaction of sodium hydroxide and hydrochloric acid is NaOH+HCl→NaCl+H₂O. How many types of compounds are there on the right side of the equation?___ A. 2 B. 3 C. 4 D. 5 相关知识点: 试题来源: 解析...
题目 (i) Write the chemical equation for the reaction that occurs when magnesium burns in oxygen.[2] 相关知识点: 试题来源: 解析\[2Mg O_2 \rightarrow 2MgO\] 镁在氧气中燃烧会发生化学反应,生成氧化镁。反应的化学方程式为: 2Mg O₂ → 2MgO...
In the chemical equation of the reaction between sodium (Na) and water (H₂O), the English for "aqueous solution" is _. A. Solid solution B. Gaseous solution C. A solution in which the solvent is water D. A solution in which the solvent is alcohol ...
百度试题 结果1 题目 Give the balanced chemical equation for the reaction of hydrogen gas (H2) with oxygen gas (O2) to form water (H2O). 相关知识点: 试题来源: 解析答案:2H2 + O2 → 2H2O 反馈 收藏
If we wish to write an equation for the chemical reaction between the elements phosphorus and oxygen, we begin with the formulae for the molecules of phosphorus and oxygen. P4 (s) + O2 (g)---> [※s = solid , g = gas .] Again, we state the formulae of the molecules which react...
In the chemical equation for the reaction we can arbitrarily transfer all the terms to the same side, writing e.g. H2+I2−2HI=0. Any reaction may be represented in the general form v1A1+v2A2+⋯=0, where A1, A2,… are the chemical symbols of the reacting substances, and v1, ...
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: