1.科学探究题- (共1题)
探究一：溶于水产生的气体成分。
（猜想与假设）小华说：该气体可能是CO2、O2、CO、H2、N2。
小明说：不可能含有N2，因为___________。
小芳说：不可能含有CO和H2，因为从药品安全角度考虑，H2和CO易燃易爆，且CO有___________。
该小组同学认为：该气体可能含有CO2、O2中的一种或两种。
（进行实验）
| 实验编号 | 实验操作 | 实验现象 |
| ① | 将气体通入澄清的石灰水中 | 澄清石灰水变浑浊 |
| ② | 将带火星的木条伸入该气体中 | 带火星的木条没有复燃 |
（得出结论）（1）由实验①可知，该气体中肯定含有________，写出该反应的化学方程式_______。
（2）由实验②_________（填“能”或“不能”）确定该气体中不含O2，原因_________。
探究二：维C泡腾片溶液的酸碱性。
向维C泡腾片溶液中滴加石蕊试液，溶液变红，说明溶液显_________性。
2.简答题- (共2题)
（1）根据表1提供的信息，填写有关含碳物质的对应特性。
| 物质用途 | 金刚石切割玻璃 | 石墨作电极 | 活性炭净水 |
| 对应特征 | ①___ | ②___ | ③___ |
（2）二氧化碳是一种宝贵的资源。固定和利用二氧化碳的一个成功范例是：在高温高压下,CO2和NH3可以合成尿素[CO(NH2)2]，同时生成水。该反应的化学方程式为_________.
（1）荔枝果实中含有丰富的维生素C（C6H8O6），可增强人体免疫功能。维生素C是由_______种元素组成，其相对分子质量为_________。
（2）荔枝中钾、铁指的是________（填“原子”、“分子”或“元素”）。
（3）荔枝开花时，蜜蜂会循着花香飞来采蜜。由此最能说明分子具有的基本性质是：______。
3.推断题- (共1题)
（1）C的化学式为________，写出该物质的一种用途___________。
（2）大气中B的含量较多，会引起________效应增强。
（3）从微观的角度解释B和C的化学性质不同的原因是_________。
（4）写出一个能实现A转化成B的化学方程式________________
4.单选题- (共9题)
| 物质 | a | b | c | d |
| 反应前质量/g | 6.4 | 3.2 | 4.0 | 2.8 |
| 反应后质量/g | 5.2 | X | 7.2 | 2.8 |
| A．该反应中a和c的质量比是16∶1 | B．d一定是催化剂 |
| C．X的值为2.0 | D．该反应是化合反应 |
| |  |
| A．该反应中共有三种元素 | B．图中反应物都是化合物 |
| C．该反应的本质是原子的重新组合 | D．该反应前后分子的种类发生改变 |
A．水结成冰前后，质量保持不变
B．50毫升水和50毫升酒精混合后体积小于100毫升
C．在100g过氧化氢溶液中，含有30g过氧化氢和70g水
D．1.2g碳与3.2g氧气恰好反应可生产4.4g二氧化碳
| A．给容积为30mL，内盛15 mL液体的试管加热 |
| B．给试管里的液体加热，液体量不超过1—2 mL |
| C．如果没有说明用量，液体应取不超过试管容积的1/3 |
| D．试管、坩埚、蒸发皿等仪器都能直接加热。 |
5.选择题- (共2题)
七选五
How to Create a Mind Map
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So, how do you create a mind map? The most basic method is to just use a pen and paper, or a marker and whiteboard. It begins with a central topic or idea, then flows outward.{#blank#}4{#/blank#} The next level of topics is represented by branches extending from it.
There aren't really any rules for creating mind maps. While most flow outwardly from the central topic, some users prefer to build mind maps in one direction.{#blank#}5{#/blank#} This can make groups of ideas easier to identify and remember. It also makes a mind map more enjoyable to create and use.
Mind maps are extremely effective for taking notes, planning a project, brainstorming an idea, presenting information to others, and many other uses. Take out your pen and have a try.
A. They help to clarify thinking.
B. This goes against how our minds actually work.
C. They help us save time by focusing on key issues.
D. A mind map is the perfect answer to this dilemma.
E. Think of it as a tree, where the central point is the trunk.
F. It's also a lot more enjoyable than simply writing down lists.
G. Others like to add colors, pictures, or symbols in their mind maps.
七选五
How to Create a Mind Map
Most of us think visually but we write textually. {#blank#}1{#/blank#} It also makes the information we list more difficult to process, remember, and share.
{#blank#}2{#/blank#} It combines the brain's visual nature with our tendency to write down words. We end up with a diagram that combines logic and order in a less structured manner. This promotes clearer thinking and better comprehension.{#blank#}3{#/blank#}
So, how do you create a mind map? The most basic method is to just use a pen and paper, or a marker and whiteboard. It begins with a central topic or idea, then flows outward.{#blank#}4{#/blank#} The next level of topics is represented by branches extending from it.
There aren't really any rules for creating mind maps. While most flow outwardly from the central topic, some users prefer to build mind maps in one direction.{#blank#}5{#/blank#} This can make groups of ideas easier to identify and remember. It also makes a mind map more enjoyable to create and use.
Mind maps are extremely effective for taking notes, planning a project, brainstorming an idea, presenting information to others, and many other uses. Take out your pen and have a try.
A. They help to clarify thinking.
B. This goes against how our minds actually work.
C. They help us save time by focusing on key issues.
D. A mind map is the perfect answer to this dilemma.
E. Think of it as a tree, where the central point is the trunk.
F. It's also a lot more enjoyable than simply writing down lists.
G. Others like to add colors, pictures, or symbols in their mind maps.
6.填空题- (共1题)
7.实验题- (共1题)
（1）请写出有标号仪器的名称：a_______________， b_______________；
（2）若用高锰酸钾制取氧气应选用的发生装置是_______（填序号ABCDEF），反应化学方程式是________，塞棉花的目的是______；要收集较纯净的氧气应选用___________。（填序号ABCDEF）
（3）用氯酸钾和二氧化锰制取氧气的化学方程式___________。
（4）可选择D收集氧气的原因是_____________；
（5）二氧化碳是密度大于空气、可溶于水的气体，实验室用固体石灰石和稀盐酸溶液混合常温制取二氧化碳。则发生装置应选择_________ （填装置编号），收集装置应选_________。 制取二氧化碳的化学方程式______________
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【1】题量占比
科学探究题:(1道)
简答题:(2道)
推断题:(1道)
单选题:(9道)
选择题:(2道)
填空题:(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：0
5星难题：0
6星难题：3
7星难题：0
8星难题：8
9星难题：4