1.简答题- (共1题)
(1)根据 定律,生成CO2气体的质量 ;
(2)参加反应的碳酸钙的质量是多少?
2.选择题- (共11题)
语法填空
When I was thirteen, my parents and I visited an eye doctor. After the examination, {#blank#}1{#/blank#} doctor said with coldness that I had an eye disease. I had inherited it, {#blank#}2{#/blank#} my brother's eyes seemed to be fine.
Fifteen years after that, my father began to lose {#blank#}3{#/blank#} sight and I did, too. I fixed all my attention {#blank#}4{#/blank#} the effects of my own darkness. My world seemed {#blank#}5{#/blank#} (break) down and it destroyed all my dreams.
{#blank#}6{#/blank#}, I learnt new things from my father. Twenty years later, I look back at what he has given me. He taught me the determination to move forward {#blank#}7{#/blank#} facing difficulties. His journey taught me valuable lessons for my own path in the darkness. He had held onto his faith and moved from his comfortable hometown to this unknown land.
I did the same as I stepped into the strange {#blank#}8{#/blank#} (sight) world. Later I gained confidence and learned the language of thankfulness. With great appreciation for my father's example, I learned the powerful combination of faith and insistence and {#blank#}9{#/blank#} (perform) my own different roles. Luckily, {#blank#}10{#/blank#} I inherited from my father helped me see my life differently.
语法填空
When I was thirteen, my parents and I visited an eye doctor. After the examination, {#blank#}1{#/blank#} doctor said with coldness that I had an eye disease. I had inherited it, {#blank#}2{#/blank#} my brother's eyes seemed to be fine.
Fifteen years after that, my father began to lose {#blank#}3{#/blank#} sight and I did, too. I fixed all my attention {#blank#}4{#/blank#} the effects of my own darkness. My world seemed {#blank#}5{#/blank#} (break) down and it destroyed all my dreams.
{#blank#}6{#/blank#}, I learnt new things from my father. Twenty years later, I look back at what he has given me. He taught me the determination to move forward {#blank#}7{#/blank#} facing difficulties. His journey taught me valuable lessons for my own path in the darkness. He had held onto his faith and moved from his comfortable hometown to this unknown land.
I did the same as I stepped into the strange {#blank#}8{#/blank#} (sight) world. Later I gained confidence and learned the language of thankfulness. With great appreciation for my father's example, I learned the powerful combination of faith and insistence and {#blank#}9{#/blank#} (perform) my own different roles. Luckily, {#blank#}10{#/blank#} I inherited from my father helped me see my life differently.
短文改错。假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1. 每处错误及其修改仅限一词。2. 只允许修改10处,多者(从第11处起)不计分。
Dear Cathy,
I am writing to share my opinion on fashion with you, for I had just heard that you are disappointing because you can't afford famous brands.
I shall say that it is naturally for people to care about his appearance. And it is true that fashionable thing like clothes and shoes will make one more eye-catching. Therefore, I think it is really a waste of money for you to buy famous brands. Besides, it will also add the burden of your parents.
What's more, beauty is only skin-deep. There are many things in which can make you popular beside fashion. A great amount of knowledge and a warm heart will surely win others' respect.
As the saying goes, never judge the person by his appearance. I do hope that you will remember the saying and be as happy as you used to be.
Yours,
Jane
①2KMnO4+16HCl(浓)→2KCl+2MnCl2+5Cl2↑+8H2O
②KClO3+6HCl(浓)→KCl+3Cl2↑+3H2O
如果上述两个反应所产生的氯气质量相等,被氧化的还原剂的物质的量之比为( )
①Na2CO3+SiO2 {#mathml#}{#/mathml#} Na2SiO3+CO2↑;
②CaCO3+SiO2 {#mathml#}{#/mathml#} CaSiO3+CO2↑
①Na2CO3+SiO2 {#mathml#}{#/mathml#} Na2SiO3+CO2↑;
②CaCO3+SiO2 {#mathml#}{#/mathml#} CaSiO3+CO2↑
3.单选题- (共9题)

A. 化合反应 B. 分解反应 C. 置换反应 D. 复分解反应
4.填空题- (共8题)
(1)天然存在的物质中最坚硬的是______________。
(2)香烟的烟气中含有一种能与血红蛋白结合的有毒气体是 _______。
(3)能消除公路上的积雪,在厨房中作为调味剂的盐的的化学式为_____________。
(4)加了洗涤剂的水能洗掉碗、筷子上的油污是因为洗涤剂对油污有______________作用。
(5)细铁丝在氧气中燃烧的现象是:剧烈燃烧,____________,生成一种黑色固体。

(1)t1℃时,甲物质的溶解度乙物质的溶解度__________(填“>”、“=”或“<”)。
(2)甲、乙两种物质的溶解度受温度影响较小的是物质__________。
(3)t2℃时,把100g乙物质放入100g水中,充分搅拌,所得溶液是溶液__________(填“饱和”或“不饱和”)。
A.称量 | B.计算 | C.溶解 | D.装瓶贴标签。回答下列问题: |
(2)配制上述溶液需要用到的玻璃仪器有量筒、玻璃棒和烧杯,其中玻璃棒在该实验中所起的作用是______________。
(1)瓦斯存在于煤层及周围岩层中,是井下有害气体的总称。瓦斯属的主要成分是 , 燃烧的化学反应方程式是
(2)当瓦斯爆炸时,下列自救措施不当的是_____________ 。
A.站在原地不动 |
B.背对爆炸地点迅速卧倒 |
C.若眼前有水,应俯卧或侧卧于水中,并用湿毛巾捂住口鼻 |
D.选择合适通道迅速逃生 |

(1)(2分)写出图中标号仪器的名称:①_______________ ②__________________
(2)用大理石和稀盐酸反应制取CO2,应选用的发生装置是(填代号,下同)______,最好选用的收集装置是___ _;反应的化学方程式: 。
(3)加热固体碳酸氢钠或固体碳酸氢铵都能产生CO2其化学方程式分别是:
①2NaHCO3


某同学采用反应①的方法制取CO2,应该选用的发生装置是_____________,他不选择反应②制取CO2的理由是______________________________________________。
(4)实验室利用硫化亚铁(FeS)和稀盐酸反应来制取硫化氢(H2S)气体,硫化氢是一种能溶于水,密度比空气大的有毒气体,该发生反应的化学方程式为 ,所用制硫化氢的发生装置为 ,收集装置为 。
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【1】题量占比
简答题:(1道)
选择题:(11道)
单选题:(9道)
填空题:(8道)
-
【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:11
7星难题:0
8星难题:4
9星难题:2