(1)单质:F2可制取HF;Br2制备溴化物和溴酸盐;I2遇淀粉变蓝,用于检验碘盐。 (2)AgX:只有AgF可溶,AgCl白色↓,AgBr浅黄色↓,AgI黄色↓。 AgBr用于制变色眼镜和照相底片,AgI常用于人工降雨。1.(2021·峨山彝族自治县第一中学高一月考)如图是氢气在氯气中燃烧的示意图。下列有关该实验的说法错误的是A...
(1)单质:F2可制取HF;Br2制备溴化物和溴酸盐;I2遇淀粉变蓝,用于检验碘盐。 (2)AgX:只有AgF可溶,AgCl白色↓,AgBr浅黄色↓,AgI黄色↓。 AgBr用于制变色眼镜和照相底片,AgI常用于人工降雨。 A. ①⑤ B. ③④ C. ②⑤ D. ②④ 相关知识点: 试题...
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BI(OH)3 + Na2SNO2 = Na2SNO3 + BI + H2O Ba(OH)2 + KHSO4 = BaSO4 + K2O4S + H2O NaCl + KF = KCl + FNa NaHCO3 + KOH = H2O + NaOH + CK2O3 FeBr3 + HCl = FeCl2 + BrH + Br2 HCOOH + CO = HC3H5O3 + CO2 H2SO3 + MgO = Mg + O3S + H2O Recently Balanced EquationsAlg...
NH4F(aq)→ NH4+(aq)+ F-(aq) Ag+(aq)+ F-(aq)+ NH4+(aq)+ I-(aq)= AgI(s)+ NH4+(aq)+ F-(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. ...
照像底片及印相纸上都散布着细小的AgBr明胶,摄影时,受光线照射而分解成细小的银: 2AgBr2Ag+Br2; AgI可用于人工降雨。硝酸银见光或加热容易分解: 2AgNO3=2Ag+2NO2+O2↓ 因此AgNO3晶体或溶液应装在棕色试剂瓶中。相关知识点: 试题来源: 解析 卤化 反馈 收藏 ...
. 卤素单质与氢气化合按F2、Cl2、Br2、I2的顺序由难变易 B. . 卤化氢的稳定性按HF、HCl、HBr、HI的顺序依次增大 C. . 卤化氢的还原性按HF、HCl、HBr、HI的顺序依次减弱 D. . 卤化银的颜色按AgCl、AgBr、AgI的顺序依次加深 4下列有关卤素单质及其化合物的说法正确的是( ) A. 卤素单质与氢气化合按 ...
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16.学习卤素后发现一种规律,某元素的单质或化合物通过缔合易溶于该元素的化合物中,如I2易溶于KI溶液中,HF易溶于NaF溶液中,属于上述情况的是( ) A.Br2易用于溴苯中B.S易用于CS2中 C.S易溶于Na2S溶液中D.AgF易溶于水中 试题答案 在线课程 分析I2易溶于KI溶液中,发生I2(aq)+I-(aq)=I3-,则卤素单质...
a = 1 (AgNO3) b = 1 (HF) c = 1 (HNO3) d = 1 (AgF) 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. ...