a NH4I + b NaOH = c INa + d NH5O Step 2: Create a System of Equations Create an equation for each element (N, H, I, Na, O) where each term represents the number of atoms of the element in each reactant or product. N: 1a + 0b = 0c + 1d H: 4a + 1b = 0c + 5d ...
NH4+(aq)+ I-(aq)+ Ag+(aq)+ ClO3-(aq)= AgI(s)+ NH4+(aq)+ ClO3-(aq) Spectator Ions Spectator ions are ions that do not take part in the reaction. They are removed from the complete ionic equation to get the net ionic equation. ...
己知:HCN(aq)与NaOH(aq)反应的△H=-12.1KJ/mol;HCl(aq)与NaOH(aq)反应的△H=-55.6KJ/mol.则HCN在水溶液中电离的△H等于( ) A、-67.7 KJ/mol B、-43.5 KJ/mol C、+43.5 KJ/mol D、+67.7 KJ/mol19世纪-20世纪,德国培养和出现了很多的化学家和物理学家,如魏勒、凯库勒、拜尔、霍夫曼、李比希、...
②稀溶液中,H+(aq)+OH-(aq)═H2O(l)△H=-57.3kJ/mol又知由H2和O2两种气体反应生成1mol液态水比生成1mol气态水多放出44kJ热量.下列结论中正确的是( ) A、H2的燃烧热为285.8 kJ/mol B、H2和O2反应生成液态水时的热化学方程式为H2(g)+ 1 2O2(g)=H2O(l)△H=-571.6 kJ/mol C、稀硫酸与稀NaOH...
NaOH, strong base d. HCI, weak acid e. Ca(OH)2, weak base What salt would form when the following strong acid/strong base reaction takes place? HClO_4(aq) + NaOH(aq) \to What salt would form when the following strong acid/strong bas...
例子:Fe, Au, Co, Br, C, O, N, F。 离子电荷尚未得到支持,将被忽略。 替换不可改变的组以避免歧义。例如,C6H5C2H5 + O2 = C6H5OH + CO2 + H2O不能被平衡,但XC2H5 + O2 = XOH + CO2 + H2O可以。 不需要复合状态[如(s)(aq)或(g)]。 你可以用小括号()或括号[ ]...
a NH4I + b NaOH = c NH3 + d H2O + f NaI Step 2: Create a System of Equations Create an equation for each element (N, H, I, Na, O) where each term represents the number of atoms of the element in each reactant or product. N: 1a + 0b = 1c + 0d + 0f H: 4a...
a NH4I + b NaOH = c H2O + d NaI + f NH3 Step 2: Create a System of Equations Create an equation for each element (N, H, I, Na, O) where each term represents the number of atoms of the element in each reactant or product. N: 1a + 0b = 0c + 0d + 1f H: 4a ...
b = 1 (NaOH) c = 1 (NH3) d = 1 (NaI) f = 1 (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. ...
b = 1 (NaOH) c = 1 (H2O) d = 1 (NH3) f = 1 (NaI) 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. ...