Blog 化学 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

似乎无法找到11年级化学模块3:反应性化学的练习问题吗?

我们回来了!

We totally understand how difficult it can be to find Year 11 practice questions online, especially ones that correlate with the new HSC syllabus.

为了帮助您,我们选择了20个练习问题,以解决化学模块3中的每个查询问题:反应性化学。

那你还在等什么?是时候巩固您对反应性化学的了解了!

Chemical Reactions
Predicting Reactions of Metals
Rates of Reactions

Chemical Reactions

查询问题1:一个化学反应的产物是什么?

Question 1

Complete the table of chemical reactions below with their respective indicators of chemical change: (6 marks)

L1.1:研究各种反应以识别化学变化的可能指标

Question 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:使用建模来演示:– the rearrangement of atoms to form new substances- 化学反应中原子的保护)

Question 3

完成下表:(6分)

(L1.3: Conduct investigations to predict and identify the products of a range of reactions, for example:Synthesis,分解,燃烧,沉淀,Acid/Base reactions,酸/碳酸盐反应)

Question 4

解释原住民和托雷斯海峡岛民如何通过特定食物为有毒食物排毒。(4分)

L1.4:研究原住民和托雷斯海峡岛民人民排毒时发生的化学过程

Question 5

为以下反应编写正确的平衡方程(5分):

a)丁烷的燃烧

b)碳酸钙和硝酸之间的反应

c) The precipitation of lead iodide

d) The decomposition of copper fluoride

e)碳酸钠的合成

L1.5:构建平衡方程以表示化学反应

Predicting Reactions of Metals

查询问题2:如何预测各种金属的反应性?

Question 6

完成下表,然后根据其反应性对金属进行排名:(8分)

L2.1:进行实际研究以比较以下各种金属的反应性:水,Dilute acid,氧,溶液中的其他金属离子

Question 7

Compare the similarities and differences between your results from your metal activity series practical from the theoretical metal activity series from secondary sources (2 marks).

L2.2: construct a metal activity series using the data obtained from practical investigations and compare this series with that obtained from standard secondary-sourced information

Question 8

在下表中标记电离能,原子半径和电负性模式:(3分)

Image sourced fromScience Notes

Question 9

描述并解释金属活性在元素周期表上的电离能量,原子半径和电负性方面的趋势。(6分)

L2.3: analyse patterns in metal activity on the periodic table and explain why they correlate with, for example:ionisation energy,原子半径,电负性

问题10

Identify which is the reductant in the following reaction (3 marks):

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: apply the definitions of oxidation and reduction in terms of electron transfer and oxidation numbers to a range of reduction and oxidation (redox) reactions

问题11

描述您将如何测量和比较含有铜和锌的电力半细胞的还原电位。如有必要,包括图。(6分)

L2.5:进行调查以测量和比较电流半细胞的降低潜力

问题12

为以下金属的反应编写半程和平衡的总氧化还原方程:

a)铜和铁

b)银和铅

c)镍和镁

L2.6:构建相关的半方程式和平衡的总方程,以表示一系列氧化还原反应

问题13

Following from Question 11, calculate the cell potential for each of the metal pairs (3 marks)

L2.6:构建相关的半方程式和平衡的总方程,以表示一系列氧化还原反应

问题14

识别以下金属对之间的氧化剂和还原剂:(5分)

a) Magnesium and Barium

b) Mercury and Iron

c) Nickel and Silver

d) Gold and Lead

e)铜和锡

L2.7:使用标准还原电位表预测溶液中金属的反应

问题15

Explain how to predict whether a redox reaction is spontaneous or not using cell potentials (3 marks).

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

Rates of Reactions

查询问题3:What affects the rate of a chemical reaction?

问题16

解释以下因素如何影响反应速率:(5分)

a) Increasing temperature on an endothermic reaction

b)放热反应的温度降低

c) Using a powdered reagent as opposed to a massive block of reagent

d) Increasing the concentration of reactant

e) The addition of catalysts to an exothermic reaction

L3.1:使用适当的工具(包括数字技术)来收集数据,分析和报告如何受到化学反应速率如何受到一系列因素的影响,包括但不限于:温度,,,,反应物的表面积,,,,concentration of reactant(s),,,,catalysts (ACSCH042)

问题17

A student grounded a block of reagent to powder to influence its rate of reaction. Explain how using a powdered reagent is more preferable to using a massive block of reagent (3 marks).

问题18

Explain the role of a catalyst in altering the rate of reaction. (3 marks)

L3.1使用适当的工具(包括数字技术)进行实际研究,以收集数据,分析和报告如何受到一系列因素的影响,包括但不限于:温度,,,,反应物的表面积,concentration of reactant(s),,,,catalysts (ACSCH042).

问题19

Explain how molecular orientation affects activation energy, with reference to the collision theory (4 marks).

L3.2:研究激活能,碰撞和分子取向在碰撞理论中的作用

问题20

With reference to the collision theory, explain how temperature changes can alter reaction rate (4 marks).

L3.2: explain a change in reaction rate using collision theory

And that wraps up our 20 practice questions for Year 11 Chemistry Module 3: Reactive Chemistry – good luck!

Aiming for a Band 6 in HSC Chemistry? Check out our guidehere得分!

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Kate Lynn Lawgraduated in 2017 with an all rounders HSC award and an ATAR of 97.65. Passionate about mentoring, she enjoys working with high school students to improve their academic, work and life skills in preparation for the HSC and what comes next. An avid blogger, Kate had administrated a creative writing page for over 2000 people since 2013, writing to an international audience since her early teenage years.

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