博客 Chemistry 20年级化学模块的20个实践问题3:反应性化学

20年级化学模块的20个实践问题3:反应性化学

Matchstick on fire - Reactive Chemistry

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我们完全了解在网上找到11年级练习问题的困难,尤其是与新的HSC教学大纲相关的问题。

To help you, we’ve selected and composed 20 practice questions that address each of the inquiry questions in Chemistry Module 3: Reactive Chemistry.

So, what are you waiting for? It’s time to consolidate your knowledge of Reactive Chemistry!

化学反应
预测金属的反应
反应速率

化学反应

Inquiry Question 1:化学反应的产物是什么?

问题1

完成下面的化学反应表及其各自的化学变化指标:(6分)

问题1- Reactive ChemistryL1.1: Investigate a variety of reactions to identify possible indicators of a chemical change

问题2

绘制一个图表,描绘了在活性金属(水与水)反应过程中如何重新排列原子以形成新物质。标记反应物和产品。(4分)

(L1.2: Use modelling to demonstrate:- 原子的重排以形成新物质– the conservation of atoms in a chemical reaction)

问题3

Complete the following table below: (6 marks)

问题3-反应性化学

(L1.3:进行调查以预测和确定一系列反应的产物,例如:合成,Decomposition,Combustion,Precipitation,酸/碱反应,Acid/ carbonate reactions)

问题4

Explain how Aboriginal and Torres Strait Islander People detoxify poisonous foods with a specific food example. (4 marks)

L1.4: Investigate the chemical processes that occur when Aboriginal and Torres Strait Islander Peoples detoxify poisonous food items

问题5

Write the correct balanced equations for the following reactions (5 marks):

a) The combustion of butane

b) Reaction between calcium carbonate and nitric acid

c)碘化铅的沉淀

d)氟化铜的分解

e) The synthesis of sodium carbonate

L1.5: Construct balanced equations to represent chemical reactions

预测金属的反应

Inquiry Question 2:How is the reactivity of various metals predicted?

问题6

Complete the table below and then rank the metals based on their reactivity: (8 marks)

问题6-反应性化学

L2.1:Conduct practical investigations to compare the reactivity of a variety of metals in:Water,稀酸,Oxygen,Other metal ions in solution

问题7

比较您的金属活动序列的结果与次要来源的理论金属活动序列实用的相似性和差异(2分)。

L2.2:使用从实际研究中获得的数据构建金属活动系列,并将本系列与从标准二级信息获得的数据进行比较

问题8

在下表中标记电离能,原子半径和电负性模式:(3分)

图像来自科学笔记

问题9

Describe and explain the trends in metal activity on the periodic table in terms of their ionization energy, atomic radius and electronegativity. (6 marks)

L2.3:分析元素性表上金属活性的模式,并解释它们与它们相关的原因,例如:电离能量,atomic radius,electronegativity

问题10

识别以下反应中哪些是还原剂(3分):

A)CH4(G) + O2(G)→H2O(L) + CO2(G)

b) Fe3O4(aq) + 4H2 (g) → 3Fe(aq) + 4H2O (l)

C)4AL(S) +3O2(G)→2AL2O3(S)

L2.4:将氧化和减少的定义在电子转移和氧化数方面的定义应用于一系列还原和氧化反应的范围

问题11

Describe how you would measure and compare the reduction potential of galvanic half-cells containing copper and zinc. Include diagrams if necessary. (6 marks)

L2.5: conduct investigations to measure and compare the reduction potential of galvanic half-cells

问题12

Write the half -equations and balanced overall redox equations for the reactions of the following metals:

a) Copper and iron

b) Silver and lead

c) Nickel and Magnesium

L2.6: Construct relevant half-equations and balanced overall equations to represent a range of redox reactions

问题13

从问题11开始,计算每个金属对的细胞电势(3分)

L2.6: Construct relevant half-equations and balanced overall equations to represent a range of redox reactions

问题14

Identify the oxidant and reductant between the following metal pairs: (5 marks)

A)镁和钡

b)汞和铁

c)镍和银

D)黄金和铅

e) Copper and Tin

L2.7: predict the reaction of metals in solutions using the table of standard reduction potentials

问题15

说明如何预测氧化还原反应是否是自发使用细胞电位的(3分)。

L2.8:使用细胞电位值预测氧化还原反应的自发性(ACSCH079,ACSCH080

反应速率

Inquiry Question 3:是什么影响化学反应速率?

问题16

Explain how the following factors can influence the rate of reaction: (5 marks)

a)在吸热反应上升高温度

b) Decreasing temperature on an exothermic reaction

c)使用粉状试剂而不是大量试剂

d)增加反应物的浓度

e)将催化剂添加到放热反应中

L3.1: conduct a practical investigation, using appropriate tools (including digital technologies), to collect data, analyse and report on how the rate of a chemical reaction can be affected by a range of factors, including but not limited to:temperature,surface area of reactant(s),反应物的浓度,催化剂(ACSCH042)

问题17

一名学生将一块试剂块接地到粉末,以影响其反应速率。说明如何使用粉末状试剂更喜欢使用大量试剂(3分)。

问题18

解释催化剂在改变反应速率中的作用。(3分)

L3.1 Conduct a practical investigation, using appropriate tools (including digital technologies), to collect data, analyse and report on how the rate of a chemical reaction can be affected by a range of factors, including but not limited to:temperature,surface area of reactant(s),反应物的浓度,催化剂(ACSCH042)。

问题19

说明分子取向如何影响激活能,参考碰撞理论(4分)。

L3.2:调查活化能的角色,collisions and molecular orientation in collision theory

问题20

关于碰撞理论,请说明温度变化如何改变反应速率(4分)。

L3.2:使用碰撞理论解释反应率的变化

这总结了我们11年级化学模块3:反应性化学 - 祝您好运!

您可以在以下其他模块上解决我们的实践问题:

瞄准HSC化学中的频段6?查看我们的指南这里to scoring one!

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