Displacement reactions
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Displacement reactions occur when a more reactive element replaces a less reactive element in a compound. There are two main types of displacement reactions: single displacement reactions, where one element replaces another in a compound, and double displacement reactions, where ionic compounds exchange positive and negative ions to form two new compounds. Examples of single displacement reactions given are magnesium displacing hydrogen in HCl to form MgCl2 and hydrogen gas, and zinc displacing copper in copper sulfate solution to form zinc sulfate and metallic copper. Examples of double displacement reactions forming precipitates are also provided.
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3. Extraction of metals using carbon and electrolysis is covered, where metals less reactive than carbon can be extracted from their oxides by reduction, and how electrolysis uses electricity to extract metals that are too reactive to be extracted by carbon.
Oxidation- reduction reactions
Introduction to redox reactions
References
Tindale, Ritchie et al, 2014, Chemistry for CSEC 2nd Edition, Nelson Thornes. p156-159
Electron Transfer in Redox Reactions Todayhttps://www.sewanhakaschools.org
Chemistry.sumepro
This document discusses the four main types of chemical reactions: combination reactions, decomposition reactions, displacement reactions, and double displacement reactions. It provides examples and balanced chemical equations to illustrate each type of reaction. Combination reactions involve reactants combining to form a single product. Decomposition reactions involve splitting a single reactant into simpler products. Displacement reactions involve a more reactive element displacing a less reactive one. Double displacement reactions involve the exchange of ions between reactants to form new ionic compounds.
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Authoring a personal GPT for your research and practice: How we created the Q...
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
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Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
Phenomics assisted breeding in crop improvement
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
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在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
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8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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原版纸张【微信：741003700 】【(uvic毕业证书)维多利亚大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
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1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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This presentation covers the content and information on "Cytokines " and their role in immune regulation .
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
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原版纸张【微信：741003700 】【(carleton毕业证书)卡尔顿大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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Displacement reactions
- 2. Those reactions in which elements takesthe place of another elements ina compound are known asdisplacement reactions. Generally a more reactive element displaces a less reactive element. WHAT ARE DISPLACEMENT REACTIONS?
- 3. Single displacement reaction Double displacement reaction TYPESOF DISPLACEMENT REACTIONS:
- 4. Single displacement reactions A single displacement reaction is one in which a single element replaces another element which is in a compound. EXAMPLE: Mg(s) + 2HCl(aq) → H2(g) + MgCl2(aq) In the above reaction, magnesium metal diaplaces hydrogen from its chloride to form magnesium chloride and hydrogen gas. Here, magnesium is more reactive than hydrogen.
- 5. EXAMPLE... • When a strip of zinc metal is placed in copper sulphate solution, then zinc sulphate and copper are formed. CuSO4(aq.) + Zn(s) → ZnSO4(aq.) +Cu(s) Copper Sulphate Zinc Zinc Sulphate Copper (Blue solution) (Colourless solution) In this reaction zinc displaces copper from copper sulphate compound so that copper is free. This displacement reaction takes place because zinc is more reactive than copper.
- 6. EXAMPLE... • When a piece of iron metal is placed in copper sulphate solution, then iron sulphate solution and copper metal are formed. CuSO4(aq.) + Fe(s) → FeSO4(aq.) + Cu(s) Copper Sulphate Iron Zinc Sulphate Copper (Blue solution) (Greenish solution) In this reaction, iron displaces copper from copper sulphate solution. The deep blue colour of copper sulphate solution fades due to the formation of green solution of iron sulphate. A red brown coating (or layer) of copper metal is formed on the surface of iron metal (or iron nail).
- 9. DOUBLE DISPLACEMENTREACTIONS A double-replacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. The general form of a double- displacement reaction is: AB+CD→AD+BC EXAMPLE: AgNO3 + NaCl → AgCl + NaNO3 The reaction between silver nitrate and sodium chloride is a double displacement reaction. The silver trades its nitrite ion for the sodium's chloride ion, causing the sodium to pick up the nitrate anion.
- 10. EXAMPLE... • BaCl2(aq.) + Na2SO4(aq.) → BaSO4(s) + NaCl(aq.) Barium Chloride Sodium Sulphate Barium Sulphate Sodium Chloride (white precipitate) In the above reaction, barium chloride solution is added to sodium sulphate solution and a white precipitate of barium sulphate is formed along with sodium chloride solution. * Any reaction in which an insoluble solid called precipitate is formed that separates from the solution is called Precipitation reaction.
- 11. AgNO3 + NaCl → AgCl (s) + NaNO3 Pb(NO3)2 + 2KI → PbI2 (s) + 2KNO3 BaCl2 + Na2SO4 → BaSO4 (s) + 2NaCl Al2(SO4)3 + 6NH4OH → 2Al(OH)3 (s) + 3(NH4)2SO4 2KBr+BaI2→ 2KI+BaBr2 HBr+KOH → KBr+H²O SomeMore Examples