1.简答题- (共2题)
(1)生成的单质与化合物分子的个数比为 ;
(2)根据上述示意图,请从微观角度描述化学变化的实质是 .

2.推断题- (共1题)

(1)操作I的名称是__;
(2)写出下列物质的化学式:B___,D___;
(3)固体A可能是_______________(填化学式,写出一种情况即可);
(4)C溶液与硝酸银溶液生成白色沉淀D的化学方程式是______________________;
(5)E溶液与F溶液生成白色沉淀的化学方程式是___________________________,该反应属于__________反应(填基本反应类型)
3.单选题- (共2题)
物质 | W | O2 | CO2 | H2O |
反应前质量/g | 16 | 72 | 2 | 0 |
反应后质量/g | 0 | 待测 | 46 | 36 |
A. “待测”数值为6g
B. W一定不是氧化物
C. CO2是反应物,H2O是生成物
D. 反应中CO2和H2O质量变化之比为23:18
选项 | 物质 | 除去杂质的方法 |
A | Cu粉(Zn粉) | 加入过量稀盐酸,搅拌、过滤、洗涤、干燥 |
B | CaO粉末(CaCO3粉末) | 加入过量水、搅拌、过滤、洗涤、干燥 |
C | FeCl3溶液(CuCl2溶液) | 加入过量的锌粉,过滤 |
D | NaCl溶液(Na2SO4溶液) | 加入过量BaCL2溶液,充分反应后过滤 |
A.A | B.B | C.C | D.D |
4.选择题- (共11题)
阅读下面短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
Every country shares things {#blank#}1{#/blank#} common: we value family and laughter, cherish food and health, and celebrate large {#blank#}2{#/blank#}(festival) and traditions. Yet within the similar things we share, there are unique parts of each country. One of characteristics that are famous of British people {#blank#}3{#/blank#}(be) their sense of humor, particularly self-mockery (自嘲). This is a type of humor that criticizes and undervalues oneself. For example, a fat person may joke: “I am on a new sea food diet. If I see food, I eat it.” This is {#blank#}4{#/blank#} well-known self-mockery joke. It's difficult why self-mockery {#blank#}5{#/blank#}(tie) to the British people. But every nation's sense of humor comes from its culture and history. It could come from another British characteristic, modesty, {#blank#}6{#/blank#}(mean) not talking openly about your skills. This seems to be something that is similar to people in China, {#blank#}7{#/blank#} modesty plays a big part in daily life. It also acts as a defense of our self-respect by playing down our skills, this can {#blank#}8{#/blank#}(less) the chance of people criticizing us. Another possible reason is {#blank#}9{#/blank#} the British people do not take themselves too {#blank#}10{#/blank#}(serious).
In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question.
根据短文理解,选择正确答案。
Welcome to our third newsletter of the year!
Our major activity for March is our Walk for the Woods fundraising event on Saturday, 17th March, starting any time between 10 a.m. and 2 p.m. We will be walking the distance between Warley Woods and Tipperary. It is indeed a long way—80 miles. The more people that you can get to sponsor you, the more money we can raise to help look after our beautiful woodland. More information is available on our website.
The Sunday volunteers planted two beeches and an oak last week. This was thanks to the money from the Big Tree Plant and to Lisa and Gordon Whitaker, whose friends gave money for the big trees instead of for their wedding presents. Thanks to everyone who took part.
There were 15 volunteers at the Oral History Training Day which was led very ably by Julia Letts. The group will be meeting again and will start to interview the local people who have offered to tell their stories. We are happy to hear from others who would like to be interviewed about their memories of the Woods for the project. If you or anyone you know is interested, please call Viv Cole at the office. This project is financed by Heritage Lottery Fund.
There was a huge response to the Forest Schools activities held at half term. These will be held again during the Easter holidays on the following dates: 4th April from 10 a.m. to 3 p.m. for over 8s. On 12th April from 10 a. m. to 12 noon, there will be a Teddy Bears' Picnic for the under 8s. All these must be booked in advance.
Finally, don't forget the Easter Egg Roll on Bank Holiday, 9th April, starting at 11 a.m. Bring your own hard-boiled and decorated egg to roll down the hill in the woods. The first past the finishing line will win a large chocolate egg! This year, due to popular demand, there will also be an Adults' Easter Egg Roll following the children's competition.
We look forward to seeing you all soon, at one of our many events!
根据短文理解,选择正确答案。
Welcome to our third newsletter of the year!
Our major activity for March is our Walk for the Woods fundraising event on Saturday, 17th March, starting any time between 10 a.m. and 2 p.m. We will be walking the distance between Warley Woods and Tipperary. It is indeed a long way—80 miles. The more people that you can get to sponsor you, the more money we can raise to help look after our beautiful woodland. More information is available on our website.
The Sunday volunteers planted two beeches and an oak last week. This was thanks to the money from the Big Tree Plant and to Lisa and Gordon Whitaker, whose friends gave money for the big trees instead of for their wedding presents. Thanks to everyone who took part.
There were 15 volunteers at the Oral History Training Day which was led very ably by Julia Letts. The group will be meeting again and will start to interview the local people who have offered to tell their stories. We are happy to hear from others who would like to be interviewed about their memories of the Woods for the project. If you or anyone you know is interested, please call Viv Cole at the office. This project is financed by Heritage Lottery Fund.
There was a huge response to the Forest Schools activities held at half term. These will be held again during the Easter holidays on the following dates: 4th April from 10 a.m. to 3 p.m. for over 8s. On 12th April from 10 a. m. to 12 noon, there will be a Teddy Bears' Picnic for the under 8s. All these must be booked in advance.
Finally, don't forget the Easter Egg Roll on Bank Holiday, 9th April, starting at 11 a.m. Bring your own hard-boiled and decorated egg to roll down the hill in the woods. The first past the finishing line will win a large chocolate egg! This year, due to popular demand, there will also be an Adults' Easter Egg Roll following the children's competition.
We look forward to seeing you all soon, at one of our many events!
with many other children, he found himself with love and care all the way . It is therefore no wonder that he grew to be a loving kid.
with many other children, he found himself with love and care all the way . It is therefore no wonder that he grew to be a loving kid.
5.填空题- (共4题)
(1)我们每天要摄入大量的食物,其中肉、蛋、奶中含有的主要营养素是 ;
(2)常用的洗洁精清洗餐具上的油污,这是因为洗洁精具有 作用,长期使用的暖水瓶内胆常有一层水垢,可以用厨房中的 除去;
(3)近年来,某些自来水厂在用液氯进行消毒处理时还要加入一种物质X,X能延长液氯杀菌时间,其反应化学方程式为X+HClO=NH2Cl+H2O,则X的化学式是 .
(1)以下不属于化石燃料的是 (填字母,下同);
A、天然气 B、石油 C、氢气 D、煤
(2)下列措施中能降低空气中PM的是 ;
A、植树造林 B、露天焚烧秸秆
C、雾霾天气出行戴口罩 D、尽量乘公交车或骑自行车出行,少开私家车
(3)大量使用化石燃料除了会导致PM2.5超标以外,还会引起其它环境问题,如: 、
等,因此人们要注重开发和使用新能源;
(4)汽车尾气中含有多种大气污染物,在催化剂的作用下可以使其中的CO和NO迅速反应转化为两种无毒的气体,其中一种是空气中含量最多的气体,这样能减少空气的污染,请你写出该反应的化学方程式
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【1】题量占比
简答题:(2道)
推断题:(1道)
单选题:(2道)
选择题:(11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:3
5星难题:0
6星难题:5
7星难题:0
8星难题:1
9星难题:0