N 4 4 ✔️ C 2 2 ✔️ Since there is an equal number of each element in the reactants and products of Ca(H2PO4)2 + 2(NH2)2CO + 3H2O = 2(NH4)2HPO4 + Ca + 2C + 5O, the equation is balanced. Balance Ca(H2PO4)2 + (NH2)2...
Crystal structure of bis(aniline)dichlorocobalt,[(C6H5NH2)2CoCl2] Crystal structure of 2(R),3(S),4(R),4a(R),4b(R),5(R),8a(S),9a(S)-2- acetoxymethyl-5-tri-methylsilyI-7-iodo-3,4,4a,4b,5,8,8a,9a-octahydro- 2H-pyrano[2,3-b]-benzofuran-3,4-diol diacetate, C21H31lO...
A、KCl中含有钾元素，属于钾肥．B、CO（NH2）2中含有氮元素，属于氮肥． C、（NH4）2HPO4中含有氮元素和磷元素，属于复合肥．D、ZnSO4中不含有氮元素、钾元素和磷元素，不属于常用肥料．故选C．
Signals not enabled for storage cannot be part of the Storage Qualifier condition
14.硫酸的化学性质:(1)具有强酸的一切通性;(2)浓硫酸的特性:①吸水性(H2SO4+nH2O=H2SO4·nH2O);②脱水 性(吸水性与脱水性的比较);③强氧化性(氧化性酸与酸的氧化性的区别)。 4 15.硫酸是实验室常用试剂:(1)用于制取某些气体 (2)干燥剂 (3)催化剂 (4)脱水剂 (5)磺化剂 (...
FrqIyOv4xzDtyKWW7KQQCyclZhm0Rh8+KYZr32DH4JdINjwjuqsbrRcgIcwFWmuqYybOlsW1TlC QMHeqZ7NzNhmWOmnR6R+XeailxXR4TqHV3eer8Rrt1GOTQYrJRsFdsMNVeCGDup4Q0W+EWN4JzcE H+bgAaZj8GI7XQe+8nnORe+SHTwwD48tXnH2hmoM3U3S47RFwkHrWVHD1p0d46PmuKiwqDpd4rBI 90QcHqSPzYZNS//YClXlsXElTHYaDpdcios8jmNsNx+...
In this work, a Mg-LiFePO4/C composite was synthesized by an aqueous rheological phase assisted method using intermediate FePO4·2H2O, which was prepared from lost cost Fe3(PO4)2·8H2O precursor. The oxidation process of Fe3(PO4)2·8H2O, rheological phase technology and Mg ion...
Ca(H2PO4)21234.052484 (NH2)2CO260.05526 H2O318.01528 产品 磷酸氢二铵氧化鈣碳氧氣 (NH4)2HPO42132.056222 CaO156.0774 C212.0107 O2231.9988 这个计算器将确定反应的限制试剂。 Instructions To calculate the limiting reagent, enter an equation of a chemical reaction and...
【答案】2:9 60 3:7:4:1 70g 【解析】 相对分子质量是各个原子的相对原子质量的总和。 (1)(NH4)2HPO4中N和H原子的个数比为。 (2)CO(NH2)2的相对分子质量是。 (3)CO(NH2)2中各元素的质量比为。 (4)150g CO(NH2)2中含有氮元素的质量为 练习...
E(C12H10O3NCl), E 为喹啉衍生物, E 经水解后得 F(C10H6O3NCl), F 在石蜡 油中于 230℃加热发生失羧得 G(C9H6ONCl),G 和 H 是互变异构体,此体 4. 4 分 (3503) 与 POCl3 共热得 I(C9H5NCl2),I 与 CH3CH(NH2)CH2CH2CH2N(C2H5)2 在 135℃ 反应得氯喹 J, 请写出 C～J 的结构式...