共轭酸碱是成对出现的,形式上相差一个质子(氢离子).酸去掉一个质子就形成其共轭碱,碱加上一个质子就形成其轭酸. HNO3的共轭碱是NO3-,NO3-的共轭酸是HNO3. OH-的共轭酸是H2O,H2O的共轭碱是OH-. 分析总结。 酸去掉一个质子就形成其共轭碱碱加上一个质子就形成其轭酸反馈...
For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. Compound states [like (s) (aq) or (g)] are not required. You can use parenthesis () or brackets []. How To Balance Equations Balance any equation or reaction ...
钢样1.000g,溶解后,将其中的磷沉淀为磷钼酸铵((NH4)2H[PMo12O40]·H2O),用L NaOH标准溶液溶解沉淀,过量的NaOH用L HNO3溶液回滴,用酚酞作指示剂,滴定到酚酞退色,用去HNO3标准溶液。计算钢样中P%和P2O5%。 相关知识点: 试题来源: 解析 解:有关反应: 3P+5HNO3+2H2O===3H3PO4+5NO↑PO43-+12MoO42...
a) 3HNO3 (aq)+Al(OH)3 (s)=Al(NO3)3+3H2O (l) b) Na2CO3 (s)+H2SO4 (aq)=H2O (l)+CO2 (g)+Na2SO4 (aq) Balanced Chemical Reaction: A chemical reaction can be pronounced by the balanced chemical reaction, if...
Zn(s)+HNO3(aq)→Zn(NO3)2(aq)+H2(g) Balanced Chemical Equation:A balanced chemical equation is a chemical equation that has an equal number of atoms of each element on either side (reactant side and product side) of the chemical equation....
Na2SO4(aq) H2O(l)ΔH=-Q2 kJ/mol HNO3(aq) KOH(aq)===KNO3(aq) H2O(l)ΔH=-Q3 kJ/mol 上述反应均为溶液中的反应,则Q1、Q2、Q3的绝对值大小的关系为 A. Q1=Q2=Q3 B. Q2>Q1>Q3 C. Q2>Q3>Q1 D. Q2=Q3>Q1 相关知识点:
ReflectanceSolar cellManganese dioxide (MnO2) particles were incorporated into the traditional wet acid etching (HF/HNO3/H2O) system to improve the texturization performance of multicrystalline silicon (mc-Si) wafers. Low surface reflectance (R) was obtained on both the slurry wire sawn (SWS) mc-...
Ⅰ.实验室利用铜和稀硝酸制备一氧化氮:3Cu+8HNO3(稀)=3Cu(NO3)2+2NO↑+4H2O,该反应的离子方程式为___。每生成11.2LNO(标准状况),转移的电子数为___NA。Ⅱ.(1)在发射“神舟”十一号的火箭推进器中装有肼(N2H4)和过氧化氢,当两者混合时即产生气体,并放出大量的热。已知:N2H4(l)+2H2O2(l)=...
1. Balance the following equations: a) HBr(aq) + Ca(OH)2(aq) ---> b) HNO3(aq) + Al(OH)3(aq) --->Question:1. Balance the following equations: a)HBr(aq)+Ca(OH)2(aq)→b)HNO3(aq)+Al(OH)3(aq)→ Balanced Chemical Equation:...
f = 4 (H2O) Step 4: Substitute Coefficients and Verify Result Count the number of atoms of each element on each side of the equation and verify that all elements and electrons (if there are charges/ions) are balanced. 3Pd +8HNO3=3Pd(NO3)2+2NO +4H2O ...