What is the molar mass of 54g of oxygen? What is the molar mass of calcium chloride? How many moles of aluminum sulfate, Al2(SO4)3, are there in 0.6076 grams of aluminum sulfate? Atomic mass of Cu is 63.6 amu. Calculate the mass of 3.5 moles of Cu. What is the molar mass of ...
A.Fe>Zn>Cu>AgB.Zn>Fe>Cu>AgC.Cu>Ag>Fe>ZnD.Ag>Cu>Zn>Fe 免费查看参考答案及解析 题目: 下列反应发生后,溶液的总质量会减少的是A.Fe+H2SO4B.Fe+AgNO3C.Fe(OH)3+HClD.Fe2O3+HNO3 免费查看参考答案及解析 题目: 铁与稀盐酸反应的化学方程式为A.Fe+HCl=FeCl2+H2↑B.2Fe+2HCl=2FeCl+H2...
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What is the charge on the hydronium ion? What is an ionic oxide? What is the name for the compound K2CO3? What is the compound name of Cu(NO3)2? What are some common compounds of mendelevium? Name the following compound: Cu(OH)2 ...
What is the oxidation number of S in H2SO?What is the oxidation number of S8? A) +1 B) -2 C) +2 D) 0What is the oxidation number of S in H2S?What is the oxidation number of Na in Na2O2? a. +1 b. +2 c. +3 d. +4What is the oxidation number of P in PO4 3-...
The charge of an element is expressed by its oxidation number. For a neutral element, the oxidation number is zero, and when the element releases an electron, the oxidation number is expressed as positive and when it gains an electron, it is expressed as negative....
已知在标准状态下,铜离子无法氧化碘离子E0(Cu2+/Cu+) = 0.17V,E0(I2/I-)= 0.535V;但若生成CuI沉淀后情况会有所变化。通过计算判定(均在标准状态下)2Cu2+ + 4I-→ 2CuI↓ + I2↓反应的方向是( )。(KspCuI = 1.1×10-12) A. 0.41V、反应向左进行 B. 0.52V、反应向左进行 C. 0.76V、...
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Looking for online definition of MOO3 or what MOO3 stands for? MOO3 is listed in the World's most authoritative dictionary of abbreviations and acronyms
2. How many milliliters of 14.5 M NH If 24.5 mL of the 0.10 M NaOH solution is required to reach the endpoint in a titration with an unknown monoprotic acid, how many moles of the acid were present? A titration involves titrating 0.4 M NaOH int...