1.简答题- (共4题)
(1)根据下图是“电解水实验”的装置图,a试管内收集的气体是_______,试管a和试管b中产生气体的质量比为__________________;

(2)实验前在水中加入少量氢氧化钠溶液的目的是_________________;
(3)有水参加的分解反应的文字表达式______________________;
(4)生活中,如何来区分软水和硬水,用______来区分,将硬水软化的方法是___________;实验室将硬水转化为软水的方法是__________;
(5)指出化学式H2O代表的意义:
a、________________________________;b、________________________________;
c、________________________________;d、________________________________。

(1)红磷的量一定要过量,原因是______________;
(2)红磷燃烧一段时间后,自动熄灭了,你认为原因是_________________
(3)冷却后,松开止水夹,你观察到的现象为____________________________________;
(4)红磷燃烧的文字表达式为________________;
(5)实验结束后,集气瓶内水面上升明显小于瓶内空气体积的1/5,分析原因可能是(只需填一点)____________________________。
(1)在你的身边有发现污染空气的现象吗?(请举一例)________________
(2)为了保护我们赖以生存的空气,我们能做些什么?(任写两点)________________
收费项目 | 单位(元/立方米) | 应收金额(元) |
自来水水费 | 1.70 | 15.30 |
水资源费 | 1.26 | 11.34 |
污水处理费 | 1.04 | 9.36 |
合计金额 | / | 36.00 |
(1)收费项目中包含了水资源费和污水处理费的主要目的是_________;
(2)请你就防治水体污染和节约用水方面各提出一点合理化建议。_________________
2.计算题- (共1题)

(1)帕拉米韦中氢元素与氧元素的质量比______________________;
(2)治疗成人H7N9禽流感患者,每天应注射帕拉米韦注射液__________支;
(3)根据帕拉米韦的相对分子质量为328,可计算出说明书上帕拉韦米的化学式中被污损处的数字应为______________;
(4)计算32.8g帕拉韦米所含氧元素的质量为__________。(结果精确到0.1g)
3.单选题- (共10题)
4.选择题- (共2题)
Comets(彗星) are parts of our solar system. Like the planets, they go around the sun.
But comets are not made of solid rocks like planets. A comet is a ball of dust, stones, and ice. Many people call comets dirty snowballs.
The "snowball"may be only a few miles across. But when the sun heats the "snowball,"much of it is changed to gases. The gases spread out and form the comet's head, which may be thousands of miles across.
A comet moves fast in its trip around the sun. But when we see it, the comet does not seem to move. That's because it is so far away. The moon moves fast, but when you look at it, you can't see any motion(运动). That's because the moon is far away.
Each year astronomers(天文学家) discover new comets. Some of them are seen only once. They make one trip around the sun and then go away out into space. The sun's gravity cannot hold them.
Other comets, like Halley, keep returning. They have been captured by the sun. Halley's earliest visit was probably 3,000 years ago. It may keep returning for another 3,000 years.
But every time a comet goes around the sun, the comet loses part of itself. Gases and dust are pulled out of the comet. That's why Halley is now dimmer(暗淡的) than it used to be. Next time it visits us, in 2062, it may be even dimmer. Each visit it may get dimmer and dimmer, until it finally disappears.
5.多选题- (共1题)
6.填空题- (共6题)
(1)地壳中含量最多的元素是_______,地壳中含量最多的金属元素是_________,两者形成的化合物的化学式是___________;
(2)稀有气体的用途比较广泛,稀有气体的化学性质________________;
(3)下列各物质中:
a、空气 b、红磷 c、氦气 d、银 e、雨水 f、水 g、二氧化碳
属于混合物的有______________(写字母,下同);属于单质的有_____________;属于化合物的有____________;属于纯净物的有__________________。

(1)表示相对稳定结构的粒子是(填序号,下同)________________,表示同一种元素的粒子是________________;
(2)在化学反应中,容易失去电子的粒子是_________________;
(3)表示阳离子的粒子是________________,表示阴离子的粒子是____________;
(4)D所表示的粒子位于第_______周期。

(1)写出装置图中标号仪器的名称:a____________,b_____________;
(2)写出实验室用过氧化氢溶液制取氧气的文字表达式_____________,该反应属于_____反应(填基本反应类型),可选用的发生装置_______(填字母);
(3)若使用高锰酸钾制取氧气,可选用的发生装置是_______(填字母),用高锰酸钾制取氧气,采用排水集气法收集氧气时,发现水槽中的水变红了,可能原因是___________________,采用向上排空气法收集氧气时,验满的方法是__________________________________________。
(1)过滤操作中用到的玻璃仪器有玻璃棒、_____和_________,其中玻璃棒的作用是_________;
(2)小波准备按下图所示的装置进行操作时,发现装置存在一处明显错误,该错误是__________________,纠正错误后,接下来的过滤操作可除去水样中的________________(填“可溶性”或“不溶性”)杂质;

(3)小波将浑浊的水样过滤后,得到的水仍浑浊,其原因可能是______________(写出一点即可);
(4)然后小波加入活性炭进行有效处理,活性炭的作用是______________,使水样变得澄清透明。
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【1】题量占比
简答题:(4道)
计算题:(1道)
单选题:(10道)
选择题:(2道)
多选题:(1道)
填空题:(6道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:9
7星难题:0
8星难题:1
9星难题:12