B.麻黄碱含有苯环、醇羟基,可以发生取代反应,含有苯环,可以发生加成反应;牛磺酸含有羟基、氨基,可以发生取代反应,B正确; C.麻黄碱含有醇羟基,可以与Na反应,但不能与NaOH发生反应,C错误; D.牛磺酸与HSCH2CH( NH2)COOH(半胱氨酸)结构不同,因此二者不能互为同系物,D错误; 故合理选项是B。反馈...
例子 Au2(O)3 C18H10N2O4 Al2*(SO4)3 HC3H5O3 C6H5CH2SSCH2C6H5 (Br)2 C4H7(CH3) SO2NaOH (CH3)COOK COS2 Ca(SO4)*2H2O MnH2O2 Recent Oxidation Numbers
C6H5Cl + CH3Cl + NaOH = C7H8 + NaCl + H2O ZnO + ZnS = Zn + O2S HKO + H2SO4 = K2S2O8 + H2 + O2 HNO3 + Al = Al + NO2 + OH C2H2 + MnNaO4 = C2Na2O4 + MnO2 + NaOH + H2O CaSi2 + H2O = HSi + CaO C6H6 + C3H8 + O2 = CO2 + H2O Ba +...
若需平衡化学方程式,输入一个化学反应方程式,然后按平衡键。平衡方程将出现在上方。 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, 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 +...
PbSO4 + C2H7NO2 = H8N2O4S + C4H6O4Pb NH4Cl + K = NH4 + KCl H4N2 + CuSO4 + NaOH = N2 + Cu2O + Na2O4S + H2O Cl + NaHSO3 = NaCl + HNaO4S + H2O + O2S CH2O + Na2O = CH2O2 + Na Br + H2O2 = HBr + O2 Recently Balanced EquationsAlgebraic...
aC2H7N +bO2=cCO2+dH2O +fN2 Step 2: Create a System of Equations Create an equation for each element (C, H, N, O) where each term represents the number of atoms of the element in each reactant or product. C:2a +0b=1c +0d+0fH:7a +0b=0c+2d +0fN:1a +0b=0c+0d+...
aH8N2O4S +bC4H6O4Pb =cC2H7NO2+dPbSO4 Step 2: Create a System of Equations Create an equation for each element (H, N, O, S, C, Pb) where each term represents the number of atoms of the element in each reactant or product. ...
aC2H7N +bO2=cCO +dH2O +fNO2 Step 2: Create a System of Equations Create an equation for each element (C, H, N, O) where each term represents the number of atoms of the element in each reactant or product. C:2a +0b=1c +0d+0fH:7a +0b=0c+2d +0fN:1a +0b=0c+0...