1.科学探究题- (共1题)
(1)氢氧化钠溶液露置于空气中容易变质,请写出相关反应的化学方程式: 。变质后的产物俗称为 。
(2)取少量该溶液于试管中,向溶液中滴加无色酚酞试液,试液变红色,由此 (填 “能”或“不能”)得出氢氧化钠溶液变质。请说明判断的理由 。
(3)为探究氢氧化钠溶液是全部变质还是部分变质,设计如下表实验:
[提供信息]:a.在水中的溶解性:Ba(OH)2可溶、Ca(OH)2微溶、BaCO3难溶;
b.BaCl2溶液、Ba(NO3)2溶液、CaCl2溶液、Ca(NO3)2溶液、NaNO3溶液均显中性。
实验步骤 | 实验现象 | 实验结论 |
Ⅰ.取少量该溶液于试管中,向溶液中滴加过量的 溶液,并不断振荡。 | 有 生成。 | 说明原溶液中一定有碳酸钠。 |
Ⅱ.取步骤Ⅰ试管中的少量上层清液,滴加酚酞溶液。 | 溶液变红色。 | 说明原溶液中一定有 。 |
由以上实验可知,氢氧化钠溶液 (填“部分”或“全部”)变质。
2.计算题- (共1题)

(1)样品完全反应后,共放出二氧化碳气体的物质的量为 mol。
(2)计算样品中氯化钠的质量分数。(根据化学方程式列式计算)
3.单选题- (共15题)
①Si+ O2

②Si +2NaOH + H2O

③SiO2+ 2C

④SiO2+ Na2CO3

下列说法错误的是
A.①属于化合反应 | B.Na2SiO3中Si元素的化合价为+4价 |
C.反应③中氧化剂是C | D.Si和SiO2可以相互转化 |
A. FeSO4+2NaOH→Fe(OH)2↓+Na2SO4
B. Fe2(SO4)3+NaOH→Fe(OH)3↓+Na2SO4
C. Fe2(SO4)3+6NaOH→2Fe(OH)3+3Na2SO4
D. Fe2(SO4)3+6NaOH→2Fe(OH)3↓+3Na2SO4



A.反应物的物质的量之比为1:1 |
B.右框图的物质是纯净物 |
C.该反应的生成物可能是氧化物 |
D.该反应可能为氢气的燃烧 |
A.其摩尔质量是180g |
B.1mol该物质中含有4mol氧原子 |
C.该物质中碳元素的质量分数为60% |
D.该物质中碳、氢、氧原子个数比为9:8:4 |
A.铁丝分别放入硝酸铜溶液和硝酸银溶液 |
B.铁丝放入硝酸铜溶液,铜丝放入硝酸银溶液 |
C.铜丝放入硝酸亚铁溶液,铁丝放入硝酸银溶液 |
D.银丝分别放入硝酸铜溶液和硝酸亚铁溶液 |
A.电解水生成氢气和氧气,说明水是由氢元素和氧元素组成的 |
B.水蒸发时,水分子变大 |
C.河水通过沉降、过滤、吸附、消毒等过程进行人工净化 |
D.生活污水集中处理后排放,有利于保护水资源 |
4.选择题- (共18题)
— ________ is OK. I'm free today.
Every April, there is a special day when people remember and honor their ancestors (祖先). It is called Tomb (坟墓)-Sweeping Day, also known as Qingming Festival. This year, the day 1 on April 4th.
Tomb-Sweeping Day is a(n)2 Chinese festival. It began over 2,000 years ago. A well-known poem by the Tang Dynasty poet Du Mu 3 the day: “Rains fall heavily as Qingming comes, and passersby with lowered spirits go. A drizzling rain falls on the mourning Day, the mourner's heart is breaking on his way.”
Tomb-Sweeping Day has been a public 4 on the Chinese mainland since 2008. On this day,5 bring flowers, food and wine to their ancestors' tombs (坟墓). They put food like cakes and fruits in front of the tombs. After that, they 6 the dirt (尘土) off the tombs and remember their dead family members.
7 do Chinese people do this? That's because people think that visiting tombs during Qingming Festival is to 8 respect (尊重) to their dead family members.
However, Tomb-Sweeping Day is not only about this. During that time, the weather is getting 9. So Tomb-Sweeping Day also means finally being able to garden and enjoy outdoor activities in China. Families often 10 for outings or fly kites at this time.
Every April, there is a special day when people remember and honor their ancestors (祖先). It is called Tomb (坟墓)-Sweeping Day, also known as Qingming Festival. This year, the day 1 on April 4th.
Tomb-Sweeping Day is a(n)2 Chinese festival. It began over 2,000 years ago. A well-known poem by the Tang Dynasty poet Du Mu 3 the day: “Rains fall heavily as Qingming comes, and passersby with lowered spirits go. A drizzling rain falls on the mourning Day, the mourner's heart is breaking on his way.”
Tomb-Sweeping Day has been a public 4 on the Chinese mainland since 2008. On this day,5 bring flowers, food and wine to their ancestors' tombs (坟墓). They put food like cakes and fruits in front of the tombs. After that, they 6 the dirt (尘土) off the tombs and remember their dead family members.
7 do Chinese people do this? That's because people think that visiting tombs during Qingming Festival is to 8 respect (尊重) to their dead family members.
However, Tomb-Sweeping Day is not only about this. During that time, the weather is getting 9. So Tomb-Sweeping Day also means finally being able to garden and enjoy outdoor activities in China. Families often 10 for outings or fly kites at this time.
— I hope so. But if our task ________ finished, we'll have to work overtime.
— I hope so. But if our task ________ finished, we'll have to work overtime.
— I hope so. But if our task ________ finished, we'll have to work overtime.
— I hope so. But if our task ________ finished, we'll have to work overtime.
材料:明代中叶,田赋制度发生了重大变化,其中最引人注目的,一是金花银的出现,而是苏(州)松(江)府等地的均田均粮活动。金花银即货币化的田赋,它是封建国家为保证朝廷财赋收入对实物田赋制进行的灵活改革。“以太祖尝折纳税粮于陕西、浙江,民以为便。遂仿其制,米麦一石,折银二钱五分。南畿、浙江、江西、湖广、福建、广东、广西米麦共四百余万石,折银白万余两,入内承运库,谓之金花银,其后概行于天下。”与金花银几乎同时发生的还有明中叶江南的均田、均粮活动。这里所说的均田、均粮不是平均地权,而是“欲因田以平其赋,使无不税之田”。
——摘编自白寿彝总主编《中国通史》
Minutes
Green Building Committee (委员会) Meeting, Wing Lung School
Date and time: 4 p.m. March 5th, 2017
Present: Mr. To (Principle), Ms. Man, Mr. Cheung, Ms. Sin (committee members)
1)Opening
Mr. To opened the meeting and welcomed Ms. Sin as a new committee member.
2)The Green Building Project
In order to make Wing Lung School more environmentally friendly and to make students take notice of environmental problems, such as rising temperature of the Earth, it has been decided that work on The Green Building Project would begin in June.
①Solar panels (太阳能电池板)
Plans to install solar panels on the rooftop of the main building have been decided.
②Roof garden
Ms. Man pointed out that a roof garden could make the temperature in the main building become lower. However, it has been decided that the school could not afford to build a roof garden at present.
③Water tank (水箱)
Plans for the installation (安装) of a water tank on the rooftop to collect water for toilets were passed.
④Timers on light switches
It has been decided that timers would be installed on light switches in all classrooms so that lights would switch off automatically(自动地) at the end of the day.
3)A speech
It was agreed that a speech would be given to tell students information about the project at 4 p.m. on March 28th in the school hall.
4)There being no other business, the meeting was ended at 5 p.m.
Minutes
Green Building Committee (委员会) Meeting, Wing Lung School
Date and time: 4 p.m. March 5th, 2017
Present: Mr. To (Principle), Ms. Man, Mr. Cheung, Ms. Sin (committee members)
1)Opening
Mr. To opened the meeting and welcomed Ms. Sin as a new committee member.
2)The Green Building Project
In order to make Wing Lung School more environmentally friendly and to make students take notice of environmental problems, such as rising temperature of the Earth, it has been decided that work on The Green Building Project would begin in June.
①Solar panels (太阳能电池板)
Plans to install solar panels on the rooftop of the main building have been decided.
②Roof garden
Ms. Man pointed out that a roof garden could make the temperature in the main building become lower. However, it has been decided that the school could not afford to build a roof garden at present.
③Water tank (水箱)
Plans for the installation (安装) of a water tank on the rooftop to collect water for toilets were passed.
④Timers on light switches
It has been decided that timers would be installed on light switches in all classrooms so that lights would switch off automatically(自动地) at the end of the day.
3)A speech
It was agreed that a speech would be given to tell students information about the project at 4 p.m. on March 28th in the school hall.
4)There being no other business, the meeting was ended at 5 p.m.
{#blank#}1{#/blank#}Kent has endless work to do every day. He is under a lot of pressure and has trouble falling asleep at night. {#blank#}2{#/blank#}Tom is an eight-year-old boy with a sweet tooth and he has already had four bad teeth. His mom is worried about his toothache. {#blank#}3{#/blank#}Jack has been a heavy smoker for 20 years. He decided to give up smoking because a body check showed he had heart problems. {#blank#}4{#/blank#}Recently, Betty eats whatever she likes. She found herself putting on weight week by week but just can't stop eating. {#blank#}5{#/blank#}Gina has a high fever because of the flu she caught at school. Her headache is so terrible that she has to stay in bed at home. | A.Famous home and abroad, Dr. Grey is one of the top doctors in the field of heart diseases. He has published (发表) over 100 papers in the area and got years of experience in performing heart operations (手术). B.Do you have problems with your teeth? Go to Dr. smith's. He is good at planting false (假的) teeth for people aged over 60. Nothing helps you feel better about yourself than to have perfect good teeth at an old age. C.Dr. Lee has got a doctor's degree in traditional Chinese and Western medicine. She is good at using both to treat flu patients while reducing (减少) their pain caused by high fever and terrible coughs. D.Dr. Chen is well experienced in helping patients get good sleep. He not only gives his patients good medical care but also provides them with useful advice on how to relax from their busy work. E.Dr. Wright is always ready to offer help on eating problems. He believes each patient needs a different plan to control his or her diet. He has helped hundreds of over-weight patients back to normal. F.Need help to make your children control their love for candies? Perhaps Dr. King can help. He is one of the best dentists in the city, with great skills in fixing bad teeth and communicating with kids to win their trust. G.Dr. Yang has developed some new ways to help patients give up smoking and they are proved to be successful in treating heavy smokers. She also does well in treating diseases caused by long-term smoking. |
5.填空题- (共2题)
(1)人们常说:“高原缺氧。”这里的氧是指 (填化学式);
(2)发酵粉中的小苏打是NaHCO3,它由 种元素组成,0.5mol NaHCO3中含有 g氧元素,该物质进行焰色反应,火焰呈 色;
(3)Fe2O3是铁锈的主要成分,可以用稀盐酸除铁锈的化学方程式是 ;
(4)医用0.9%的生理盐水中的溶质是 (填化学式);
(5)常用于充填气球的稀有气体是 (填化学式);
(6)将CO2通入紫色石蕊试液中,溶液呈 色,升高温度,CO2气体在水中的溶解度 (填“增大”或“减小”);
(7)水果飘香,从分子的角度解释是因为 。

(1)t1℃时,甲的溶解度 (填 “大于”“小于”或“等于”)乙的溶解度;若要从甲的饱和溶液中得到固体甲,则采用 方法。
(2)某同学在t1℃时开始进行如图②实验,在烧杯A、B、C中能得到饱和溶液的是 (填编号),溶质质量分数最大的是 (填编号);
(3)烧杯C中再加入15g甲后,充分搅拌,恢复到t2℃时,所得溶液的质量是 g。
6.实验题- (共2题)

(1)写出图中标号仪器的名称:w (3) 。
(2)实验室制备CO2应选用的发生装置是 (填字母),其化学方程式为 ,该装置 (填“可以”或“不可以”)用启普发生器代替;若用D装置收集CO2,则气体应从 (填a或b )端进。
(3)实验室用H2O2溶液和MnO2混合制氧气,其中MnO2起 作用,该反应的化学方程式为 。若用E装置收集并测量得到的O2体积,则量筒应与 (填c或d)端连接。
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【1】题量占比
科学探究题:(1道)
计算题:(1道)
单选题:(15道)
选择题:(18道)
填空题:(2道)
实验题:(2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:3
5星难题:0
6星难题:9
7星难题:0
8星难题:6
9星难题:3