1.简答题- (共3题)
(1)①中的现象说明______________________________
(2)烟雾中是否存在CO？____，做出此判断所依据的实验现象为_______。
2.计算题- (共1题)
| | 第一次 | 第二次 | 第三次 | 第四次 |
| 稀盐酸质量/g | 50g | 50g | 50g | 50g |
| 余下固体质量/g | 20g | 10g | 9g | 9g |
试求：(1)此石灰石样品的纯度。(2)200g稀盐酸中所含氯化氢的质量。
3.科学探究题- (共1题)
(1)[猜想]：甲同学认为：反应产生的气体全部为二氧化碳。
乙同学认为：反应产生的气体全部为一氧化碳。
丙同学认为：反应产生的气体既有二氧化碳又有一氧化碳。
(2)[设计实验]：根据各自的猜想，他们共同设计了实验(如图示)，(他们在实验中进行了规范操作和细致的观察)。
(3)[现象与结论]：(提示：CO会使新鲜鸡血变色)
如果甲同学猜想正确，装置B、C中的实验现象是_____________________________；
如果乙同学猜想正确，装置B、C中的实验现象是_____________________________；
如果丙同学猜想正确，装置B、C中的实验现象是_____________________________。
(4)此实验装置有不足之处，请你对该装置进行改进，具体措施是_____________。
(5)根据上述实验及学习的木炭与CuO、Fe2O3的反应，请你归纳出单质碳的一项重要用途是_______________________________________。
4.推断题- (共1题)
(1)请写出有关物质的化学式：A______ B______ C________D_______ E______F______
(2)写出下列变化的化学方程式：
A + B → D ： __________________________________________
C + B → E ： __________________________________________
D + E → F ： __________________________________________
5.单选题- (共9题)
CaO十CO2↑，该反应的类型是 ( )| A．化合反应 | B．置换反应 | C．分解反应 | D．复分解反应 |
C+D↑，气体D易溶于水，D的相对分子质量为17，则应选择下列何种发生装置和收集方法 ( )| A．制CO2的装置和向下排空气法 | B．高锰酸钾制氧气的装置和向下排空气法 |
| C．高锰酸钾制氧气的装置和排水集气法 | D．高锰酸钾制氧气的装置和向上排空气法 |
| A．温度太低 |
| B．试管口倾斜了 |
| C．反应开始时，没有把试管内的空气排干净 |
| D．铜没有在一氧化碳气流中冷却而又被空气中氧气所氧化 |
①减少煤等燃料的使用；②禁止使用煤等燃料；③禁止乱砍乱伐；④开发氢能源；⑤利用水力发电；⑥种植花草树木．
| A．①③④⑤⑥ | B．①②③④⑤⑥ | C．③④⑤⑥ | D．①②④ |
| A．①②③④⑤ | B．②①④③⑤ | C．①④③②⑤ | D．①②④③⑤ |
6.选择题- (共1题)
The Internet nowadays opens a wide world to people, including teenagers, but many parents worry that their children may meet with something unhealthy when searching online. In order to solve this problem, a new search engine for children called Kiddle has appeared.
Search results are filtered（过滤）,so only safe website are shown and descriptions are written in simple language. Searches with bad words are shut off, too.
Kiddles uses the same colors as Google in its logo and a similar design on its homepage, too—with an extra robot picture.
The top three Kiddle search results show safe websites and pages written specially for kids, and those websites and pages are well chosen and checked by Kiddle developers.
The fourth to seventh results will be safe and trusted websites that are not written specially for kids, but have content written in a simple way. These results are also chosen and checked.
Results on the eighth and owwards pages are safe and famous websites that are written for adults. They provide expert content, but are harder for kids to understand.
Unlike on Google, most results appear along with large thumbnail pictures（缩略图）to make it easier for children to find what they are looking for. For example, when searching for "meow meow". Google produces pages for information about a drug（毒品）that has "meow meow" as its nickname（绰号）,but Kiddle lists information only about cats, even with some cartoon pictures.
The company explained, "Websites which appear in Kiddle search results satisfy family-friendly requirements, as we filter websites with unhealthy content."
Kiddle—a Child-Friendly Search Engine | ||
Characteristics | Only safe websites are shown. Descriptions are written in simple language. {#blank#}1{#/blank#} bad words appear. | |
Logo | It uses the same colors as Google with a robot picture. | |
Content | The top three search results | Websites and pages are written {#blank#}2{#/blank#} for kids, after being well chosen and checked. |
The fourth to seventh results | Websites are also worth {#blank#}3{#/blank#} and have content written in a simple way. | |
The eighth and onwards results | Websites are safe and famous, written for adults, and they are not {#blank#}4{#/blank#} for kids to understand. | |
{#blank#}5{#/blank#} from Google | Kiddle has many thumbnail pictures. Kiddle only gives safe information. | |
Advantage | Kiddle satisfies family-friendly requirements. | |
7.实验题- (共1题)
按下列要求回答问题(所选装置用其代号字母表示)
(1)实验室用高锰酸钾的加热分解来制取氧气时，发生装置选用_____，收集装置选用_____，该装置制取氧气的化学方程式为__________________________。
(2)实验室用大理石和稀盐酸来制取二氧化碳时，发生装置选用_____，收集装置选用_____，该制取二氧化碳的化学方程式为__________________________________________。
(3)硫化氢是一种无色且有臭鸡蛋气味的气体，能溶于水，可形成一种酸溶液——氢硫酸。实验室用硫化亚铁跟稀硫酸反应制取硫化氢气体。试回答：
①硫化氢气体具有臭鸡蛋气味，这是硫化氢的___________(填“物理”或“化学”)性质。
②硫化氢的水溶液能使石蕊试液变_________色。
③实验室制取H2S气体时，发生装置应选用_____，收集装置应选用_________(填仪器编号)。
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【1】题量占比
简答题:(3道)
计算题:(1道)
科学探究题:(1道)
推断题:(1道)
单选题:(9道)
选择题:(1道)
实验题:(1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：1
5星难题：0
6星难题：6
7星难题：0
8星难题：7
9星难题：2