1.流程题- (共1题)

请回答下列问题:
(1)二氧化硅与焦炭反应的另一种产物是一氧化碳。该反应的化学方程式为 。
(2)蒸馏属于 变化(填“物理”或“化学”)。
(3)完成由下列纯SiHCl3制取高纯硅的化学方程式:

2.计算题- (共2题)

(1)Al(OH)3的相对分子质量为 。
(2)经测定,每片该抗酸药实含氢氧化铝234mg。
计算一片该抗酸药可消耗7.3%的盐酸多少克(请写出计算过程)?


(1)计算该硫酸铜晶体(CuSO4·xH2O)中x的值。(CuSO4·x H2O的相对分子质量为:160+18x)
(2)CuSO4中铜元素的质量分数是多少?
(3)升温到t2℃,残留固体是黑色物质,则m为多少g。(写出求m的过程)
3.简答题- (共1题)
(1)为什么油库、面粉厂都要严禁烟火?
(2)某温度下,华雪同学用纯净的氯化钠固体配制好5%的氯化钠溶液后,用pH计(精确测定溶液pH的仪器)测得该氯化钠溶液的pH=6.5,于是得出氯化钠溶液呈酸性的结论。你认为华雪同学的结论是否正确?若不正确,还需要增加什么对比实验?
4.推断题- (共1题)


已知A是地壳中含量仅次于铝的金属元素的单质,C为紫红色金属单质,A 、C都能与Cl2直接化合生成相应的金属氯化物B、E。回答下列问题:
(1)A为 、B为 。
(2)D与Cl2化合生成E的化学方程式为 。
(3)A与E也可以化合生成D,请写出化学反应方程式 。
5.单选题- (共15题)
A. ①②③ B. ②③④ C. ①②④ D. ①③④
A. C+CO2


C. 2Na+2H2O=2NaOH+H2↑ D. Cu+4HNO3(浓)=Cu(NO3)2+2NO2↑+2H2O
A. 1∶1 B. 1∶2 C. 1∶4 D. 1∶5

A. 所有化学反应在反应前后分子个数都不发生变化
B. 此反应过程中只有物质变化,没有能量变化
C. 在任何条件下,H2和Cl2均不能大量共存
D. 由微观示意图可知:2gH2和71gCl2发生反应可生成73gHCl
A. 含有C、H、O三种元素
B. 只含C、H元素
C. 含有C、H元素,可能含有O元素
D. 含有C元素,可能含有H、O元素
A. 空气是由多种单质和化合物组成的混合物
B. 空气中含量较多且化学性质活泼的是氮气
C. 呼吸、燃烧、炼钢、化工生产等都要用到氧气
D. 空气是一种宝贵的自然资源,要保护空气,防止污染空气
A. 金属材料中一定不含有非金属元素
B. 多数合金的抗腐蚀性能比组成它们的纯金属更好
C. 双动力公交车所有部件都是由金属材料制造的
D. 地球上的金属资源是取之不尽、用之不竭的
A. 溶液的上层浓度小,下层浓度大
B. 溶液蒸干后,均能得到固体溶质
C. 溶液中只有一种溶质时,溶液为纯净物
D. 物质在溶解得到溶液的过程中,通常有放热或吸热的现象出现
A.糖类、油脂、蛋白质都是由C、H、O三种元素组成的高分子化合物
B.我们不需要从食物中摄取维生素,因为多数维生素能在人体内合成
C.由于缺碘会引起甲状腺肿大,所以我们要多食用加碘食盐
D.由于霉变食物中含有能损害人的肝脏、诱发肝癌等疾病的黄曲霉毒素,因此,我们绝对不能食用霉变食物
A. 炒菜时油锅中的油不慎着火,可用锅盖盖灭
B. 扑灭森林火灾的有效方法之一是将大火蔓延路线前的一片树木砍掉,形成隔离带
C. 不慎碰倒酒精灯,酒精在桌面上燃烧起来,应立即用水浇灭
D. 遇到火灾时,可用湿毛巾捂住口鼻,蹲下靠近地面或沿墙壁跑离着火区域
A.碳酸钠广泛应用于玻璃、造纸、纺织和洗涤剂的生产 |
B.氯化钠在自然界中分布很广.海洋、盐湖、盐井、盐矿等都是氯化钠的来源 |
C.侯氏制碱法消耗了二氧化碳.极大地缓解酸雨的形成 |
D.氯化铵与熟石灰粉末混合研磨,放出具有刺激性气味的氨气 |
6.选择题- (共17题)
The movie {#blank#}1{#/blank#} her love {#blank#}2{#/blank#} her family, friends and country.
A group of swans flew down to a beach where a crow(乌鸦) was jumping around. The crow watched them with disdain(鄙视).
“You have no flying skills at all!” he said to the swans.
“All you can do is to move your wings. Can you turn over in the air? No, that's beyond you. Let's have a flying competition. I'll show you what real flying is!”
One of the swans, a strong young male, took up the challenge. The crow flew up and began to show his skills. He flew in circles, performed other flying tricks, and then came down and looked proudly at the swan.
Now it was the swan's turn. He flew up, and began flying over the sea. The crow flew after him, making all kinds of comments (评价) about his flying. They flew on and on till they couldn't see the land and there was nothing but water on all sides. The crow was making fewer and fewer comments. He was now so exhausted that he found it hard to stay in the air, and had to struggle to keep himself from falling into the water.
The swan pretended(假装) not to notice, and said, “Why do you keep touching the water, brother? Is that another trick?”
“No,” said the crow. He knew he had lost the competition.
“I'm in trouble because of my pride! If you don't help me, I'll lose my life…”
The swan took pity on him, and took him on his shoulders and flew back to the beach.
My name is Jim and I live in Canada. My mother is from Korea and my father is from France, so we speak three languages(语言) at home. I think languages are very interesting and I want to learn Portuguese and Chinese. But my favorite subject isn't language. It's math. I really like history, too.
I like sports, especially(尤其) soccer and basketball, because they're relaxing. But I don't have much time to play. I go to the music club after school on Mondays. I have guitar lessons on Wednesdays, and I go to the library(图书馆) on Fridays. Saturdays and Sundays are great, because I can play sports, play computer games and watch TV.
I started to learn English when I was six. My dad gave me1advice on listening to the Beatles. I listened to them every day for the next seven years. At the beginning, I could understand2of what they sang. But soon I started to understand some of the3.
4 I got a book with the words of all the songs. And when I had time, I would read it. I learned many songs5this book. I6the songs to myself. Still, I understood very7of the meaning. To learn English well became my8, and I wanted to learn the9of the Beatles' songs. That is how I started to learn English.
Today, I can understand the Beatles very10. Each time I hear a Beatles' song, I am happy and proud because my dream of learning English well has come true.
Look! Here is a photo of my1. The tall man is my father. He2in a radio station. He likes his job. Every morning he gets up early, because he doesn't want to be3for work. The radio station is far from our4, so my father always drives to work. It usually5him about forty minutes. The woman6white is my mother. She is a teacher. She7music in my school. She usually goes to school8. She likes walking and she says it's good9Can you see the girl in black? It's10My name is Lisa. I walk to school with my mother every day.
Do you know the song My future isn't a dream?I love the song{#blank#}1{#/blank#}it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard{#blank#}2{#/blank#}them.
When I was young, my father always{#blank#}3{#/blank#}me what I would be in the future. Sometimes I found it very hard to give {#blank#}4{#/blank#}right answer. “I want to be a doctor.” “I hope to be a{#blank#}5{#/blank#}(science)”. Some of these answers sound like{#blank#}6{#/blank#}(joke), but I never think they are {#blank#}7{#/blank#}(meaning).
I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.
Now my goal is to go to the{#blank#}8{#/blank#}(good) university in China after high school. I know it's hard, and I'll{#blank#}9{#/blank#}(meet) many problems. But no matter how difficult it is, I'll keep on{#blank#}10{#/blank#}(work) on it and never give up.
Do you know the song My future isn't a dream?I love the song{#blank#}1{#/blank#}it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard{#blank#}2{#/blank#}them.
When I was young, my father always{#blank#}3{#/blank#}me what I would be in the future. Sometimes I found it very hard to give {#blank#}4{#/blank#}right answer. “I want to be a doctor.” “I hope to be a{#blank#}5{#/blank#}(science)”. Some of these answers sound like{#blank#}6{#/blank#}(joke), but I never think they are {#blank#}7{#/blank#}(meaning).
I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.
Now my goal is to go to the{#blank#}8{#/blank#}(good) university in China after high school. I know it's hard, and I'll{#blank#}9{#/blank#}(meet) many problems. But no matter how difficult it is, I'll keep on{#blank#}10{#/blank#}(work) on it and never give up.
Do you know the song My future isn't a dream?I love the song{#blank#}1{#/blank#}it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard{#blank#}2{#/blank#}them.
When I was young, my father always{#blank#}3{#/blank#}me what I would be in the future. Sometimes I found it very hard to give {#blank#}4{#/blank#}right answer. “I want to be a doctor.” “I hope to be a{#blank#}5{#/blank#}(science)”. Some of these answers sound like{#blank#}6{#/blank#}(joke), but I never think they are {#blank#}7{#/blank#}(meaning).
I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.
Now my goal is to go to the{#blank#}8{#/blank#}(good) university in China after high school. I know it's hard, and I'll{#blank#}9{#/blank#}(meet) many problems. But no matter how difficult it is, I'll keep on{#blank#}10{#/blank#}(work) on it and never give up.
The article{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} self-improvement.
No Car Day was first started by 34 cities in France on September 22, 1998. It was started to protect the environment. By now, more than 1,000 cities around the world have had a No Car Day. The first No Car Day in China was in Chengdu in 2001. Other cities, including Taipai, Shanghai and Wuhan, also support the day.
In Beijing, more and more people are joining the campaign. It asks drivers to leave their cars at home for one day each month and walk or ride a bike to work. It also calls on Beijingers not to use cars on June 5(World Environment Day). The slogan for the day is, “If we drive for one less day, we can have one more nice day.”
So far, more than 200,000 drivers have shown their support. “We can't control the weather, but we can choose not to drive,” said Wu Zonghua, a car club chairman. Beijing is trying to have 238 blue sky days this year. In the first quarter of 2012, Beijing only had 52 blue sky days. This was 11 days less than the number for the same period the year before. Much of the dust comes from the desert, but cars cause most of the air pollution. We must do more for No Car Day.
7.填空题- (共4题)

(1)以上四种结构示意图所表示的粒子中,属于非金属元素的是_____(填字母代号)。
(2)以上四种结构示意图所表示的粒子中,易失去电子的是_________(填字母代号)。
(3)C中x =__________。
(1)已知CaOCl2中的一种酸根离子是次氯酸根离子(ClO—),则另一种酸根离子对应的酸的化学式为 。若将该混盐改写成如Ca(NO3)Cl的形式,其化学式可表示为 。
(2)在Ca(NO3)Cl中氮元素的化合价为 。
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【1】题量占比
流程题:(1道)
计算题:(2道)
简答题:(1道)
推断题:(1道)
单选题:(15道)
选择题:(17道)
填空题:(4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:4
5星难题:0
6星难题:6
7星难题:0
8星难题:14
9星难题:0