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1、第一学期期中考试 1 第一学期期中考试(1)第一学期期中测试初三化学试卷温馨提示：相对原子质量：K 39 Cl 35.5 O 16 H 1一、选择题（每小题只有一个选项符合题意。共18 个小题，每小题3 分，共 54 分。）1.下列成语中，其本意描述化学变化的是 A 磨杵成针 B 死灰复燃 C 木已成舟 D 立竿见影 2.空气中氧气和氮气的体积比约为 A 11 B 15 C 14 D 12 3.下列有关盛放某些气体的集气瓶，其摆放情况正确的是 A B C D 4某种植蔬菜的专业户，不慎用污水浇灌了蔬菜，蔬菜上市销售时检测出蔬菜中铅、铜、铬、锌等重金属含量超标，这里提到的铅、
2、铜，铬、锌是指 A 原子 B 元素 C 分子 D 单质 5.下列有关实验现象的描述正确的是 A 碳在氧气中燃烧，生成白烟 B 铁丝在空气中燃烧，发出耀眼的强光，生成黑色固体 C 硫在空气中燃烧，生成一种有刺激性气味的气体 D 红磷在空气中燃烧，生成五氧化二磷气体 6下列现象或事实，用分子的相关知识加以解释，其中正确的是 A 蔗糖是白色固体，说明分子用肉眼可以看见 B 碘升华说明分子可以再分 C 水沸腾时，掀起壶盖，说明分子大小随温度升高而增大 D 将氧气压入蓝色的钢瓶中贮存，说明分子间有间隔 7夏天从冰箱里拿出一瓶饮料，放在空气中，饮料外壁会潮湿，说明空气中含有精品w o r d 学习资料 可
3、编辑资料-精心整理-欢迎下载-第 1 页，共 7 页 A 氮气 B 氧气 C 水蒸气 D 二氧化碳 8要区别下列各组物质，所选择的方法（或试剂）不正确的是 A 氧气和氮气带火星的木条 B 二氧化碳和一氧化碳澄清的石灰水 C.硬水和软水肥皂水 D 氮气和二氧化碳燃着的木条 9.下列化学式与名称相匹配的是 A、N 2O 二氧化氮 B、NaSO 4 硫酸钠 C、MgO 氧化镁 D、FeCl 2 氯化铁 10小明将取来的黄河水样品倒入烧杯中，静置后，用右图所示装置进行过滤，请判断下列说法中错误的是 A 改正图中的一处错误：过滤时滤纸的边缘要略低于漏斗的边缘 B 指出图中的另一处错误：倾倒液体的烧杯没有
4、靠在玻璃棒上 C 漏斗的下端没有紧靠烧杯的内壁可导致滤液溅出 D 将该图改进后过滤得到的水是纯水，不含任何杂质 A 9 B 17 C 10 D 12 12 某同学在试管中加入2mL 3mL 蒸馏水然后进行加热，操作有以下四步：点燃酒精灯；在试管中加2mL 3mL 蒸馏水；将试管夹夹在试管的中上部；将试剂瓶盖好，放回原处。正确的操作顺序是 A B C D 13.地壳中含量最多的金属元素、非金属元素和空气中含量最多的元素所组成的物质为 A Fe(NO3)3 B Al(NO3)3 C Al 2O 3 D CaCO 3 14.近年来，我国有一些城市向全体市民发出节约用水的倡议。下列做法或建议错误的是
5、A 洗澡擦肥皂时关好喷头 B 刷牙少用一口水，洗脸少用一杯水 C 拖完地的水浇花 D 为了节约时间，一两件衣服就用洗衣机洗 15下列有关碳和碳的氧化物的说法不正确的是精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页，共 7 页文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O
6、7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X
7、2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O
8、7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X
9、2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O
10、7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X
11、2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7 A.C可以将 CuO 中的 Cu 置换出来 B.在一定条件下CO 2 能够转变成 CO C.CO2 能使被石
12、蕊染成紫色的干花变红 D.金刚石、石墨和C 60 都是碳元素的单质 16手机中使用的锂（Li）电池是新型的高能电池，某电池的总反应方程式可表示为：Li+MnO2=LiMnO2，此反应中锂元素的化合价变化为0+1，下列对锰元素的化合价变化 A+4 +3 B+2 +3 C 0+2 D-4 -2 17.实验室里，用如右图所示装置还原氧化铜的过程中，可能生成铜、氧化亚铜（红色）或 A.实验结束时，玻璃管中黑色的氧化铜粉末变成红色，该产物不一定是铜 B.反应后，玻璃管中的固体物质的质量比反应前减少了，不能证明一定有铜生成 C.实验时，试剂瓶中澄清的石灰水变浑浊，证明该反应有二氧化碳生成 D.若试剂瓶的石
13、灰水足量，则不用增加尾气处理装置 18下列说法正确的是 A 电解水可以得到氢气，是因为水中含有氢分子 B 原子和分子的根本区别在于分子是由原子构成 C 原子、分子及离子都是构成物质的微粒 D 化学式中可以含有的符号是：英文字母、数字、小括号、汉字 19.(4分)把符合题意的序号填在相应的位置上：空气；干冰；冰水混合物；液氮；高锰酸钾；金刚石；自来水；(1)属于混合物的是_；(2)属于化合物的是_；(3)属于单质的是 _；(4)属于氧化物的是_。20(6 分)(1)鱼油中富含的DHA(C22H 32O 2)是大脑细胞形成和发育不可缺少的物质。有关 DHA，四位同学表述了如下的说法，请你将说法和补
14、充完整，写在下面的横线上。精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页，共 7 页文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:
15、CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V
16、3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:
17、CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V
18、3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:
19、CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V
20、3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7 N 说法：表示DHA 由_。说法：表示每个DHA 分子由 _。(2)指出下列符号中“2”所表示的意义2NO 3表示 _；O 2 表示_；O 表示 _；Fe 2+表示_ 21、(4 分)化学源于生活又服务于生活，在生活中，我们应活学活用化学知识，如：
21、（1）你在家中帮家长洗刷碗或水杯时，判断碗洗刷干净的标志是。（2）倒开水时暖水瓶塞应放（填“正”或“倒”）在桌上，其理由是（3）茶杯内的纱网，可将茶叶与茶水分离，便于饮用，该设计利用的化学原理是_。22.(6分)在一个密闭容器中盛有化合物X 的水溶液和少量空气，向容器内加入化合物 Y 的粉末立即发生剧烈反应。测得反应前后有关物质的质量如下：(1)该密闭容器内发生的反应的类型是_反应 (2)化合物 Y 可能是 _剂 (3)组成化合物 X 的元素有 _ (4)X 的相对分子质量为34，则 X 的化学式是 _,容器中发生反应的化学方程式是_ 23(7 分)阅读材料，回答问题：材料一：l869 年，俄
22、国化学家门捷列夫对已发现的元素进行研究，制作了元素周期表(右表是其片断)，并在他的元素周期表中留下了许多空位代表尚未发现的新元素，其中就预言了“类铝”这种新元素。材料二：l875 年，法国化学家布瓦博德朗公布了他发现的新元素镓(元精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页，共 7 页文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P
23、5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编
24、码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P
25、5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编
26、码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P
27、5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编
28、码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7素符号为 Ga)的性质：镓是银白色金属，密度4
29、.7g cm-3，能与沸水剧烈反应生成氢气和氢氧化镓。不久，他收到门捷列夫的来信称：镓就是我预言的“类铝”，其密度应在 5.9 6.0 g cm-3 之间。材料三：l876 年，布瓦博德朗将金属镓提纯后测得镓的密度为5.94g cm-3 从而验证了元素周期表的正确性。随后科学家根据元素周期表的空位，按图索骥，发现了许多新元素。目前金属镓广泛用于制造半导体材料。镓（Ga）的原子结构示意图如右，常见化合价为+3。(1)镓元素的质子数为_，其原子最外层电子数为_；(2)写出氯化镓的化学式为 (3)请根据上述材料，总结金属镓的有关知识：物理性质：_；化学性质(请用化学方程式表示)：；(4)请从上述周期
30、表片断中查出硅元素的一种数据，并指出其含义：_；24.(6分)根据下列装置图回答问题。A B C D E F G（1）标号的仪器名称。（2）实验室用一定质量的高锰酸钾制取氧气，写出该反应的化学方程式。若用排水量测定所收集到的氧气体积，若各装置的连接顺序是：a b c d，F 装置内导管（“b”或“c”）该怎样延伸？请画出。（3）实验结束，发现F 中的水变成了浅紫红色，你认为产生该现象的原因可能是（4）若用双氧水和二氧化锰制取氧气，并用排空气法收集氧气，则应选择上述装置中的哪 25.(7分)小王同学利用下图装置制取CO 2，其中用到的大理石0.5g（碳酸钙的质量分数为精品w o r d 学习资料
31、 可编辑资料-精心整理-欢迎下载-第 5 页，共 7 页文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8
32、J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3
33、J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8
34、J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3
35、J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8
36、J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3
37、J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7 (1)实验前，小王检查了A 装置的气密性，他进行的操作是 (2)写出制取CO 2的化学方程式：(3)小王向 A 装置中加入稀盐酸，发现稀盐酸全部倒入后只能将长颈漏斗液封，但并没有接触到大理石，接下来他该怎么办，请你给他支招：(4)根据计算，应收集到的气体为89.0mL,但小王在该实验中只收集到50.0
38、mL,假设大理石与稀盐酸充分反应,装置的气密性良好，并且气体体积读数准确,你认为造成这一结果的可能原 (5)为了得到平稳的CO 2气流，小王可选择下列装置替代A 装置的是 A B C D 26.(6分)把干燥纯净的氯酸钾和二氧化锰的混合物6.90g 装入大试管中，加热制取氧气，待反应完全后，将试管冷却，得到4.98g 固体物质。试计算：制取的氧气为多少克？4.98g 固体中含有什么物质？各为多少克？第一学期期中测试初三化学试卷答案 118 题：BCBBC DCDCD DCBDC ADC 19.(4分)（1）（2）（3）（4）（各 1 分）20.(6分)(1)碳、氢、氧（三种）元素组成22 个碳
39、原子、32 个氢原子、2 个氧原子构成(2)两个硝酸根离子一个氧分子由两个氧原子构成氧元素的化合价为 2价（或氧显 2 价）一个亚铁离子带两个单位的负电荷（各1分）21.(4分)（1）碗内壁附着的水均匀，既不聚成水滴，也不成股流下（2）倒避免桌上有脏物而污染整瓶开水（3）过滤（各 1 分）22.(6分)(1)分解（1 分）(2)催化（1 分）(3)氢（或 H）、氧（或O）（1分）(4)H2O 2（1 分）2H 2O 2Y 2H 2O+O2（2 分）（催化剂写成MnO 2扣一分）精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 6 页，共 7 页文档编码:CV9U7Y3J3O7
40、HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P
41、2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7
42、HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P
43、2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7
44、HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P
45、2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7
46、HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7 23.(7分)(1)31，3(每空 1 分)(2)GaCl3(1分)(3)银白色金属，密度为5.94gcm-3(1分)2Ga+6H2O Ga(OH)3+3H2(2 (4)相对原子质量为28.09 或质子数(原子序数、核电荷数)为 14(1分)24.(6分)（1）水槽（1 分）（2）2KMnO 4=K2MnO 4+MnO2+O2（2（3）A 装置试管口未塞一团棉花，导致紫色的高锰酸钾粉末吹入
47、到F 装置中。（1分）（4）B C（1 分）25.(7分)(1)先打开活塞，向长颈漏斗中加水至液封，然后关闭活塞，继续向长颈漏斗中加水，静置一会儿，若长颈漏斗中会形成一段稳定的液柱，表明该装置的气密性良好。（1 分）(2)CaCO 3+2HCl=CaCl2+CO2+H2O（2 分）(3)向长颈漏斗中加入蒸馏水至稀盐酸浸没大理石（1 分）(4)CO2溶入水，损耗了一部分（1 分）(5)A C（2 分）26.(6分)解：生成氧气的质量为：6.90g 4.98g=1.92g（1 分）设生成氯化钾的质量为x，2KClO 3=2KCl+3O2,（2 分）x 1.92g MnO 2的质量为 4.98g 2
48、.98g=2g,（1 分）149x=x=2.98g（2 分）961.92g精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 7 页，共 7 页文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B
49、6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文
50、档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B6P5V3X2 ZY8J6X2P2F7文档编码:CV9U7Y3J3O7 HJ4B