1.计算题- (共1题)
(1)原固体中CaCO3的质量；
(2)所用盐酸溶液中溶质的质量分数。
2.单选题- (共5题)
| A．原子的质量主要集中在原子核上 |
| B．构成物质的微粒只有分子和原子 |
| C．气体易被压缩，说明构成气体的分子在不断运动 |
| D．物质在不同条件下的三态变化主要是由于分子的大小发生了变化 |
A. 青蒿素属于无机物
B. 青蒿素的一个分子中含有42个原子
C. 青蒿素的相对分子质量为282
D. 青蒿素中碳元素的质量分数约为63.8%
| A．糖类、油脂、蛋白质都是人体必需的营养物质 |
| B．农业上大量使用杀虫剂以提高农作物产量 |
| C．酸雨对农作物、建筑物等有破坏作用 |
| D．煤、石油、天然气都是不可再生的化石燃料 |
3.选择题- (共7题)
根据句意及首字母提示补全所缺单词。
（1）--Thank you very much! --You’re w{#blank#}1{#/blank#}
（2）Do you w {#blank#}2{#/blank#} a big bed or a small one for your son?
（3）I get a school bag at a very good p{#blank#}3{#/blank#}
（4）There is a big s{#blank#}4{#/blank#} near our school. There are many school things in it.
（5）You can b{#blank#}5{#/blank#} some food in a supermarket (超市).
Mrs. Smith is Jim's mother. She loves her family very much. She goes to the store every day. She often buys food, fruit and clothes for Jim and her husband（丈夫）. Now many clothes are on sale at Renmin Clothes Store. They are very cheap. Mrs. Smith comes to the store and she wants to buy some clothes for her family. There they have sweaters in all colors for ￥15 each and sports shoes for only ￥28. Mrs Smith likes the red sweater and she buys one for herself. She buys a pair of sports shoes for her son. The great T-shirts in the store are just ￥18! She buys a white one for Mr Smith. And that's not all. The socks, in all colors, are ￥2 each. She buys the socks in many colors for her family. She is really a Rood mother and a good wife (妻子)
Mrs. Smith is Jim's mother. She loves her family very much. She goes to the store every day. She often buys food, fruit and clothes for Jim and her husband（丈夫）. Now many clothes are on sale at Renmin Clothes Store. They are very cheap. Mrs. Smith comes to the store and she wants to buy some clothes for her family. There they have sweaters in all colors for ￥15 each and sports shoes for only ￥28. Mrs Smith likes the red sweater and she buys one for herself. She buys a pair of sports shoes for her son. The great T-shirts in the store are just ￥18! She buys a white one for Mr Smith. And that's not all. The socks, in all colors, are ￥2 each. She buys the socks in many colors for her family. She is really a Rood mother and a good wife (妻子)
4.填空题- (共5题)
(1)请写出图中标有字母a的仪器名称________。
(2)实验室用氯酸钾和二氧化锰混合制取氧气时，应选用的发生装置是____________(填写装置的字母代号，下同)，请写出该反应的化学方程式___________________________，其中二氧化锰起________作用。
(3)实验室制取二氧化碳气体时，应选择的发生装置和收集装置是____________。请写出用澄清石灰水检验二氧化碳时发生反应的化学方程式_____________________________。
(4)如图F所示，向烧杯中倾倒二氧化碳，下层蜡烛先熄灭，上层蜡烛后熄灭，说明二氧化碳具有的性质是____________、____________且密度比空气的大。
(1)B的名称是________。
(2)A与甲反应的化学方程式为________________________________________，该反应的基本反应类型是________。
(3)实验室制取C物质的化学方程式为________________________________。
(1)除去水中难溶性固体杂质的操作是________。
(2)检验水样是硬水还是软水，可用的物质是________；测定水样的酸碱度可用________。
(3)下列关于水的说法正确的是________。
| A．水是有机物，能赋予生命 |
| B．爱护水资源，要节约用水，还要防止水体污染 |
| C．水是由氢原子和氧原子构成的 |
| D．水中氧元素含量很高，能提供人体所需的氧气 |
(1)图中P点的含义是________。
(2)t2℃时，将A、B两物质的饱和溶液各100 g，分别降温到t1℃，所得A物质溶液的质量_______________(填“＞”或“＝”或“＜”)B物质溶液的质量。
(3)欲将t2℃时B物质的饱和溶液变为不饱和溶液，可采用的方法是_______或______。
5.实验题- (共1题)
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【1】题量占比
计算题:(1道)
单选题:(5道)
选择题:(7道)
填空题:(5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：3
5星难题：0
6星难题：4
7星难题：0
8星难题：4
9星难题：0