)H2O B HO C H2O2 D HO2)有兩條邊長必須相等最大內角是120最長邊的平方等于最短邊平方的2倍至少有一個外角小于135)確保產品符合要求確保量測的准確性確保測量設備能持續處于正常工作狀態確保損壞的設備用于生產中PK的正常范圍應該在(A )1.33-1.671.02-1.33...
When the water molecule is added to some other molecule, this type of reaction is known as hydration reaction. This is also an example of the addition reaction of alkene as a complete water molecule is added to alkene without the elimination of any chem...
百度试题 结果1 题目What is the chemical symbol for water? A. H2O B. O2H C. OH2 D. H2O2 相关知识点: 试题来源: 解析 A。解析:水的化学符号是 H2O。其他选项的组合都不是水的化学符号。反馈 收藏
What type of chemical reaction is rust? a) Which element is oxidized and which is reduced in the reaction ? 6 Li(s) + N2(g) \rightarrow 2 Li3N(s) b) Which atom is oxidized and which is reduced in the reaction ? Sr(s) + 2 H2O(l) \rightarrow Sr^{2+}(aq) + 2 OH^-(aq...
Identify the oxidizing agent in the following redox reaction CH4 + 2O2 \rightarrow CO2 +2H2O For the reaction: MNO_4+HNO_2 to NO_3+Mn^{2+}. Which species was the oxidizing agent and reducing agent? What is the oxidizing agent in the following oxida...
In a redox reaction, two opposite processes occur simultaneously: (1) release of electrons by a species (oxidation) and (2) gaining of electrons by another species (reduction). Answer and Explanation: A species is said to be reduced if its oxidation number...
How many moles of hydrogen are produced from the reaction of three moles of zinc with an excess of hydrochloric acid? Zn + 2HCl - ZnCl2 + H2 What is the AMU for the formulas H2O2 and H3PO4? When 1.20 mole of ammonia ( NH_3 ) reacts, what is the total number of moles of water...