2015年天津市中考化学试题及答案.pdf

2015 年天津市初中毕业生学业考试试卷化学可能用到的相对原子质量：H 1 C12 N 14 O 16 Na 23 Mg 24 A1 27 S 32 Cl 35 5 Fe 56 Cu 64 一、选择题(本大题共10 小题，每题2 分，共 20 分。每题给出的四个选项中，只有一个最符合题意)1以下变化属于化学变化的是A粮食酿酒B湿衣晾干C酒精挥发D冰雪融化2地壳中含量最多的元素是AO BSi CA1 DFe 3把少量以下物质分别放入水中，充分搅拌，可以得到溶液的是A面粉B泥土C蔗糖D汽油4以下物质属于纯洁物的是A食醋B液氮C空气D石油5一些食物的近似pH 如下：食物葡萄汁苹果汁牛奶鸡蛋清pH 2.93.3 其中显碱性的食物是A葡萄汁B苹果汁C牛奶D鸡蛋清6以下图示实验操作中，正确的选项是A B C D 7以下化合物中氮元素的化合价最高的是ANH3B NO C NO2 DHNO38以下图表示两种气体发生的化学反应，其中相同的球代表同种原子。以下说法正确的选项是A该反应生成两种物质B该反应是复分解反应C化学反应前后原子的种类不变D分子在化学变化中是不可分的9以下说法正确的选项是A木炭燃烧后生成红色固体B一氧化碳在空气中燃烧发出蓝色火焰C红磷在空气中燃烧产生大量白雾D铁丝伸入盛有氧气的集气瓶中剧烈燃烧10以下有关燃烧和灭火的说法正确的选项是A可燃物只有在空气中才能燃烧B通过降低可燃物的着火点可以灭火C空气中混有可燃性气体，遇明火时可能发生爆炸D任何燃料完全燃烧时，一定会生成二氧化碳二、选择题(本大题共5 小题，每题2 分，共 10 分。每题给出的四个选项中，有12 个符合题意。只有一个选项符合题意的多项选择不得分；有2 个选项符合题意的只选一个且符合题意得1 分，假设选2 个有一个不符合题意则不得分)11以下说法正确的选项是A所有含碳元素的化合物都是有机物B农药施用后，不会在农作物或农产品留有残余C人体中含量较多的前四种元素是氧、碳、氢、氮D草木灰的主要成分是碳酸钾，碳酸钾属于复合肥料12以下实验方法不正确的选项是A用二氧化锰区分水和5过氧化氢溶液B用燃着的术条区分氮气和二氧化碳气体C用适量的稀硫酸除去木炭粉中混有的少量氧化铜D刚适量的铁粉除去氯化亚铁溶液中混有的少量氯化锌13以下说法正确的选项是A由不同种元素组成的物质一定是混合物B某物质能与碱反应生成盐和水，则该物质一定是酸C金属与盐溶液发生置换反应后，溶液的质量一定增加D同一温度下，某吲体物质的饱和溶液一定比其不饱和溶液的溶质质量分数大14下表各选项中，实验操作一定能够到达相对应的实验目的的是选项实验目的实验操作A 验证氧气能支持燃烧把带火星的木条伸到盛有氧气的集气瓶中B 验证二氧化碳与水反应生成碳酸向收集满二氧化碳的集气瓶中加入约13 体积的滴有酚酞的水，振荡C 探究稀硫酸与氢氧化钠溶液恰好完全反应向稀硫酸与氢氧化钠溶液反应后所得的溶液中滴加硝酸钡溶液D 探究人体吸入的空气与呼出的气体中二氧化碳含量的不同常温下，同时分别向同体积的盛有空气样品和呼出气体样品的集气瓶中滴加相同滴数的饱和澄清石灰水，振荡15以下说法正确的选项是A等质量的CO 和 CO2，CO 和 CO2中氧元素的质量比为11：14 B等质量的Al 和 Mg 分别与足量稀硫酸充分反应，生成H2的质量相等C等质量的NaHCO3和 MgCO3分别与足量稀盐酸充分反应，生成CO2的质量相等D等质量的质量分数均为4氢氧化钠溶液与稀盐酸充分反应后，所得溶液显中性第卷可能用到的相对原子质量：H 1 C 12 N 14 O16 Na 23 S 32 Cl 35.5 Fe 56 三、填空题(本大题共3题，共 20 分)16(6 分)化学与我们的生活有着密切的联系。现有氮气盐酸淀粉熟石灰金刚石氯化钾，选择适当物质填空(填序号)。(1)可用作钾肥的是；(2)可用来裁玻璃的是；(3)人体胃液中含有的酸是；(4)可用来改进酸性土壤的碱是；(5)焊接金属时常用作保护气的是；(6)米和面中含有的糖类物质主要是。17(5 分)元素周期表是学习和研究化学的重要工具。答复以下问题：文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1(1)元素周期表中不同种元素间最本质的区别是(填字母)。A质子数不同B中子数不同C相对原子质量不同(2)1869 年，(填字母)发现了元素周期律并编制出元素周期表。A张青莲B门捷列夫C拉瓦锡(3)元素周期表中氟元素的有关信息如以下图所示，以下说法正确的选项是(填字母)。A氟属于金属元素B氟的原子序数是9 C氟的相对原子质量是1900 g(4)氟原子结构示意图为，氟原子在化学反应中易(填“得到”或“失去”)电子，由钠元素和氟元素组成的化合物氟化钠的化学式为。1 8(9 分)人类的日常生活和工农业生产离不开水。请答复：(1)水(填“属于”或“不属于”)人类所需的六大基本营养素之一。(2)含有较多可溶性钙、镁化合物的水叫做(填“软水”或“硬水”)。(3)以下净化水的单一操作中，相对净化程度较高的是(填字母)。A静置沉淀B吸附沉淀C蒸馏(4)水在通电的条件下可以分解，写出该反应的化学方程式。(5)甲和乙两种固体物质的溶解度曲线如右以下图所示，答复以下问题：在时，甲和乙两种物质的溶解度相等。将 t1时等质量的甲和乙两种物质的饱和溶液分别降温到0，析出固体质量较少的是(填“甲”或“乙”)。t2时，将60 g 甲物质放入100 g 水中，充分搅拌，所得溶液的溶质质量分数w(甲)与同温下乙物质的饱和溶液的溶质质量分数w(乙)大小关系为(填字母)。Aw(甲)w(乙)Cw(甲)=w(乙)D无法确定四、简答题(本大题共3 题，共 20 分)19(6 分)写出以下反应的化学方程式(1)硫在氧气中燃烧(2)锌和稀硫酸反应(3)氢氧化钾溶液与稀盐酸反应20(6 分)A、B、C、D 是初中化学常见的物质，这四种物质中均含有同一种元素。其中A 为无色气体单质，B、C 为氧化物，且B 为有毒气体，D 是大理石的主要成分。它们之间的部分转化关系如以下图所示(图中反应条件及部分反应物、生成物已省略)。答复以下问题：(1)写出以下物质的化学式：A；D。(2)写出由物质C 转化为物质B 的化学方程式。(3)写出物质 C 与过氧化钠(Na2O2)反应生成碳酸钠和物质A 的化学方程式。21(8 分)金属材料与人类的生产和生活密切相关。请答复：(1)以下用品中，主要利用金属导电性的是(填字母)。A铂金饰品B铁锅C铝导线文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1(2)为了验证铝、铜、银三种金属的活动性顺序，设计了以下四种方案，其中可行的是(填序号)。将铝、银分别浸入到硫酸铜溶液中将银分别浸入到硫酸铝、硫酸铜溶液中将铜、银分别浸入到硫酸铝溶液中将铜分别浸入到硫酸铝、硝酸银溶液中(3)在氯化铜和氯化亚铁的混合溶液中加入一定量的镁粉，充分反应后过滤，得到滤渣和滤液。滤液中一定含有的溶质是(填化学式)；向滤渣中滴加稀盐酸，有气泡产生，则滤渣中一定含有的物质是(填化学式)。(4)某钢铁厂每天需消耗4 900 t 含 Fe2O3 76的赤铁矿石，理论上可日产含Fe 98的生铁的质量是t。五、实验题(本大题共3 题，共 20 分)22(7 分)根据以下实验装置图，答复以下问题。(1)写出图中仪器a的名称：。(2)实验室用加热氯酸钾和二氧化锰混合物制取氧气的化学方程式为，可选择的发生装置为(填字母)。(3)实验室用石灰石和稀盐酸反应制取二氧化碳的化学方程式为，该反应生成的二氧化碳气体中常混有少量氯化氢气体，可通过盛有饱和碳酸氢钠溶液的F 装置除去氯化氢气体，则该混合气体应从F 装置的口(填“”或“”)通入。23(5 分)现有 A、B、C、D、E 五种溶液，它们分别是氢氧化钠溶液、硫酸铜溶液、碳酸钠溶液、氯化钠溶液和稀硫酸中的一种。鉴别它们可按以下图所示的步骤进行，答复以下问题：(1)B 中的溶质是(填化学式)。(2)用 X 鉴别 D、E 时，X 可以选用不同的物质。假设 X 为稀盐酸，写出有气体生成的反应的化学方程式；假设 X 为澄清石灰水，写出有沉淀生成的反应的化学方程式。24(8 分)利用海水提取粗盐的过程如以下图所示，答复以下问题。(1)一定质量的海水，通过贮水池引入到蒸发池，在没有引入结晶池之前的蒸发过程中，蒸发池中氯化钠的质量会(填“增大”、“不变”或“减小”)。(2)粗盐中含有的难溶性杂质，在实验室里可以通过溶解、过滤、蒸发等操作将其去除，这些操作中都会用到玻璃棒，其中在过滤操作中玻璃棒的作用是(填“引流”或“加快溶解”)。(3)用氯化钠固体配制100 g 质量分数为6的氯化钠溶液。文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1配制时，涉及以下实验步骤：A称量及量取B计算 C溶解 D装瓶贴标签。其正确的实验步骤顺序是(填字母)。将已配好的100 g 质量分数为6的氯化钠溶液变成质量分数为16的氯化钠溶液，需要再加NaCl 的质量是g(计算结果精确到0.1)。六、计算题(本大题共2 题，共 10 分)25(3 分)N(NO2)3是科学家2011 年发现的一种新型火箭燃料。计算：(1)N(NO2)3中氮原子和氧原子的个数比为(填最简比)；(2)N(NO2)3的相对分子质量是;(3)以下化合物中，氮元素质量分数最小的是(填字母)。AN(NO2)3BN2O3CN2O526(7 分)某碳酸钠样品含有少量的硫酸钠，取一定质量的该样品，完全溶解在水中配制成100 g 溶液，将其全部加入到100 g 一定质量分数的硫酸溶液中，恰好完全反应，生成的气体全部逸出后，所得溶液质量是1956 g，将溶液蒸干，得到156 g 硫酸钠。计算：(1)加入的硫酸溶液的溶质质量分数；(2)原碳酸钠样品中碳酸钠的质量分数(计算结果精确到01)。文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U12015 年天津市初中毕业生学业考试化学参考答案一、选择题(每题 2 分，共 20 分)1A 2A 3C 4B 5 D 6D 7D 8C 9B 10 C 二、选择题(每题 2 分，共 10 分。只有一个选项符合题意的多项选择不得分；有2 个选项符合题意的只选一个且符合题意得1 分，假设选2 个有一个不符合题意则不得分)11C 12BD 13D 14AD 15AC 三、填空题(20 分)16(6 分)(1)(2)(3)(4)(5)(6)17(5 分)(1)A(2)B(3)B(4)得到NaF 18(9 分)(1)属于(2)硬水(3)C(4)2H2O 通电 2H2+O2 (5)20 乙 B 四、简答题(20 分)19(6 分)(1)S+O2点燃 SO2(2)Zn+H2SO4=ZnSO4+H2(3)HCl+KOH KCl+H2O 20(6 分)(1)O2CaCO3(2)CO2+C 高温2CO(3)2CO2+2Na2O2=2Na2CO3+O221(8 分)(1)C(2)(3)MgCl2Cu、Fe(4)2660 五、实验题(20 分)22(7 分)(1)长颈漏斗(2)2KClO3 MnO2 2KCl+3O2 A(3)CaCO3+2HCl CaCl2+H2O+CO2 23(5 分)(1)CuSO4(2)Na2CO3+2HCl 2NaCl+H2O+CO2 Ca(OH)2+Na2CO3CaCO3+2NaOH24(8 分)(1)不变(2)引流(3)BACD 11.9 六、计算题(10 分)25(3 分)(1)2：3(2)152(3)C 26(7 分)解：生成二氧化碳的质量：100 g+100 g 一 195.6 g=4.4 g 设样品中碳酸钠的质量为x，反应的硫酸质量为y，生成硫酸钠的质量为z。Na2CO3+H2SO4=Na2SO4+H2O+CO2106 98 142 44 x yz4.4 g 106：44=x：4.4 g x=10.6 g 98：44=y：4.4 g y=9.8 g 142：44=z：4.4g z=14.2g 硫酸溶液中溶质的质量分数：/100g100=9.8原样品的质量：+=12g 100=88.3答：硫酸溶液中溶质的质量分数为9.8，原样品中碳酸钠的质量分数为88.3文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1文档编码:CJ1S1L8C9D6 HG2Y3O2I2P6 ZX2G10K7O3U1