To balance the equation Ca(H2PO4)2 + (NH4)2CO3 = CaHPO4 + (NH4)2HPO4 + C + H + O using the algebraic method step-by-step, you must have experience solving systems of linear equations. The most common methods are substitution/elimination ...
In short-term growth-chamber experiments with Sudan grass and cotton seedlings, vertical split-root and conventional pot techniques were used to determine that injury from (NH4)2HPO4 was the result of 2 separate effects: Ca deficiency and ammonia toxicity. It was concluded that Ca deficiency was...
A.(NH4)2SO4B.Ca(H2PO4)2C.KNO3D.KCl 免费查看参考答案及解析 题目: [中考化学上期中考真题] 下列物质中属于复合肥的是A.CO(NH2)2B.Ca3(PO4)2C.(NH4)2HPO4D.KCl 免费查看参考答案及解析 题目: [中考化学上册中考真题] 下列实验方法能达到目的的是 选项 实验目的 实验方法 A 鉴别(NH4)2SO4和...
Naoaki Kuwata3,Yoshiharu Uchimoto4 & Koji Amezawa2* Aiming development of the fast anion conductors, we proposed a new material design using flexible molecular cation as a host cation, and demonstrated it with fluoride ion conduction in NH4MgF3 and (NH4)2MgF4 based materials....
A.(NH4)2HPO4 B.KNO3 C.NH4NO3 D.Ca3(PO4)2 免费查看参考答案及解析 题目: 学校花圃所种的花卉缺乏氮元素和钾元素。如果只施用一种化肥,则应施用 A.K2CO3 B.NH4H2PO4 C.NH4NO3 D.KNO3 免费查看参考答案及解析 题目: 下列有关物质鉴别方案正确的一组是: ...
已知:SO32-+I2+H2O=SO42-+2H++2I-某溶液中可能含有I-、NH4+、Cu2+、SO32-,向... 查看答案 (NH4)2PtCl6晶体受热分解,生成氮气、氯化氢、氯化铵和金属铂。在此分解反应中,氧化产物与还原产物的物质的量... 查看答案 有Fe2+、NO3-、Fe3+、NH4+、H+和H2O六种粒子,分别属于某一反应中的反应物和...
Ca(H2PO4)2 - + + (NH2)2CO - + + H2O - + = (NH4)2HPO4 - + + Ca - + + C - + + O - + 反应物产品 Ca 1 1 ✔️ H 10 9 ❌ P 2 1 ❌ O 10 5 ❌ N 2 2 ✔️ C 1 1 ✔️计算器 化学方程式 化学方...
The solubility in the(NH_4)_2HPO_4-H_2O system was the lowest. The mean ionic activity coefficients were calculated for the three phosphate solutions at C = 0.5 mol?kg-1using the p H values and dissolution reaction constant. The mean ionic activity coefficients were the largest for the(...
A。CaCO3 B.CaO C。NaOH D.Na2SO4 答案:A (2018,上册,46)在一定条件下,同一反应进行的快慢与反应物的质量分数成正比。现用100 g溶质质量分数为30%的盐酸与过量的锌粉反应,为了使反应速率减慢,而又不影响生成氢气的质量,可向所用的盐酸中加入适量的[ ] ...
4 of 11 Table 2. Chemical composition of sample ES-NH (values in wt %). SiO2 Al2O3 Fe2O3 MnO MgO CaO Na2O K2O TiO2 P2O5 (NH4)2O H2O Sum Si6O7.285 Al122O.831 Fe02.O783 M0n.0O1 M0.g3O9 C0a.3O0 N0.a142O 0K.426O 0T.2iO3 2 P0.20O55 (N5H.764)2O 10H.922O...