b = 3 (H2SO4) c = 1 ((Al2)(SO4)3) d = 3 (H2) 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 (i
解:(1)该化学方程式用定一法来配平,以产物Al2(SO4)3为基准配平(选择较复杂的物质为配平的参考基准),显然根据守恒原则,反应物需要2个Al,3个H2SO4,H元素都来自H2SO4,故在H2O前配3,故该化学方程式为Al+3H2SO4=Al2(SO4)3+3H2↑; (2)本题可利用“定一法”进行配平,把Cu(OH)2的计量数定为1,则CuSO...
Enter an equation of an ionic chemical equation and press the Balance button. The balanced equation will be calculated along with the solubility states, complete ionic equation, net ionic equation, spectator ions and precipitates. 元素中的第一个字符使用大写字母,第二个字符使用小写字母。例子:Fe, Au...
你的方程式写错了，2Al+3H2SO4=Al2(SO4)3+3H2，Al2(SO4)3这念作硫酸铝 铝和硫酸反应，生成硫酸铝和氢气将铝投入硫酸中生成白色沉淀硫酸铝与无色气体氢气铝和硫酸反应，生成硫酸铝和氢气
Answer to: Balance the following equations: a) 3HNO3(aq)+Al(OH)3(s) = Al(NO3)3+3H2O(l) b) Na2CO3(s)+H2SO4(aq) = H2O(l)+CO2(g)+Na2SO4(aq) By...
沉淀物 Fe〔OH〕3 Al〔OH〕3 Fe〔OH〕2 Mg〔OH〕2 开始沉淀pH 完全沉淀pH 1 答案：以黄铁矿为原料制硫酸产生的硫酸渣中含Fe2O3、SiO2、Al2O3、MgO,用硫酸渣制备铁红〔Fe2O3〕的过程如下:〔1〕酸溶过程中Fe2O3与稀硫酸反的化学方程式为 Fe2O3+3H2SO4═Fe2〔SO4〕3+3H2O ;“滤渣A〞主要成份...
假设A为Fe2O3,写出一个可能的化学方程式 (3)假设A为CO2、B为H2O,那么该反响的化学方程式是.(4)假设反响为A+2NaOH=C+Cu〔OH〕2↓,那么A和C的相对分子质量之差为.答案：〔1〕Cu和Al2〔SO4〕3[或者Al2〔SO4〕3和Cu]〔2〕C或者CO或者H2或者酸等任填一个 〔3〕6CO2+6H20=C6H12O6+6O2 〔4〕18 ...
Tocalculate the stoichiometryof Al + H2SO4 = Al2(SO4)3 + S + H2O you must balance the equation to find the stoichiometric mole ratio of each compound. The equation can be balanced using thechemical equation balancer. The stoichiometry calculator above shows the mole ratios/...
b = 3 (H2SO4) c = 1 (Al2(SO4)3) d = 6 (H(NO3)) 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. ...
说明理由。 (1)[Fe(H2O)6]3+和[Fe(H2O)6]2+ (2)[Al(H2O)下列各对物质中哪一个酸性较强?说明理由。 (1)[Fe(H2O)6]3+和[Fe(H2O)6]2+ (2)[Al(H2O)6]3+和[Ga(H2O)6]3+ (3)Si(OH)4和Ge(OH)4 (4)HClO3和HClO4 (5)H2CrO4和HMnO4 (6)H3PO4和H2SO4...