Amphoteric Oxide Definition in Chemistry

An amphoteric oxide is an oxide that can act as either an acid or base in a reaction  to produce a salt and water. Amphoterism depends on the oxidation states available to a chemical species. Because metals have multiple oxidation states, they form amphoteric oxides and hydroxides. Amphoteric Oxide Examples Metals that display amphoterism include copper, zinc, lead, tin, beryllium, and aluminum. Al2O3 is an amphoteric oxide. When reacted with HCl, it acts as a base to form the salt AlCl3. When reacted with NaOH, it acts as an acid to form NaAlO2.Typically, oxides of medium electronegativity are amphoteric. Amphiprotic Molecules Amphiprotic molecules are a type of amphoteric species that donate or accept H or a proton. Examples of amphiprotic species include water (which is self-ionizable) as well as proteins and amino acids (which have carboxylic acid and amine groups). For example, the hydrogen carbonate ion can act as an acid: HCO3−   OH−  Ã¢â€ â€™ CO32−   H2O or as a base: HCO3−   H3O  Ã¢â€ â€™ H2CO3   H2O Keep in mind, while all amphiprotic species are amphoteric, not all amphoteric species are amphiprotic. An example is zinc oxide, ZnO, which does not contain a hydrogen atom and cannot donate a proton. The Zn atom can act as a Lewis acid to accept an electron pair from OH−. Related Terms The word amphoteric derives from the Greek word amphoteroi, which means both. The terms amphichromatic and amphichromic are related, which apply to an acid-base indicator that yields one color when reacted with an acid and a different color when reacted with a base. Uses of Amphoteric Species Amphoteric molecules that have both acidic and basic groups are called ampholytes. They are primarily found as zwitterions over a certain pH range. Ampholytes may be used in isoelectric focusing to maintain a stable pH gradient.

Management Styles - 1016 Words

There are several very different types of management styles ranging from democratic which allows the subordinates to play an active role in the decisions that management makes to autocratic which cuts the subordinate out of the decision making process allowing those in management to make a unilateral decision. Both styles have their proponents as well as their detractors. This paper will outline the various forms of management and attempt to clarify and categorize their various strengths and weaknesses. I. AUTOCRATIC ________________________________________ As previously mentioned, this form of management does not consider what the subordinates or employees think; but rather allows the members of management to make unilateral decisions†¦show more content†¦Goleman also warns that â€Å"the democratic style can have its drawbacks. One results when a leader over relies on this approach is exasperating, endless meetings in which ideas are mulled over, consensus remains elusive, and the only visible outcome is to schedule yet more meetings (Goleman, Boyatzis and McKee).† III. PARTICIPATIVE ________________________________________ The participative style is a hybrid between the autocratic and the democratic styles of management. This style will often ask for and listen to the opinions of subordinate employees, but in the end they do not have a say in the final decision (Exploring Different Management Styles). This style is an attempt at a compromise whereby the subordinates get to speak their mind and yet the managers are still free to make snap decisions that are in the best interest of the company. Some subordinates may still feel that they are not truly being heard by management. To help promote morale, the managers of an organization need to make sure that any idea that was submitted by a subordinate is publically implemented. If the employees see that as a whole they are being heard then they will not take it personally whenShow MoreRelatedManagement Style1277 Words   |  6 PagesAs you may know, different management styles are required in different parts of the world. It is important to choose the right management style for each situation, which is a key to success for an organization. All managers use a management process which consists of planning, organizing, leading and controlling. So they have to perform many roles in an enterprise. What they can do with various situations will totally depend on their style of management. A management style is an overall method of leadershipRead MoreManagement Styles1486 Words   |  6 PagesThe management culture provides the deve loping direction of a company. It decides the characteristic and company culture in an enterprise. However, the style can be influenced by certain factors, such as, policy, history background, social system, international competition. In this essay, three management styles and two company types will be indentified and discussed. Management style belongs to management strategy; it can be composed of operation strategy, company culture and managers. ToRead MoreManagement Styles Analysis1456 Words   |  6 PagesManagement Styles Management is a far-running subject and there are many definitions of management. From my point of view, management is described as a process to get something done in the business environment. It is the person called Manager who gets various jobs done by assign works to people working with him/her. How the Manager can get the things done effectively and efficiently is an important problem that should be researched. Robert Tannenbaum and Warren H. Schmidt (1958, 1973), who arguedRead MoreThe Autocratic Style Of Management922 Words   |  4 PagesManagement is a key part in any organizations. Managers are the people that make the decisions that affect everybody below them.This job is very demanding and requires people to be attentive to their surroundings, situations, and their co-workers to be truly effective. Naturally, not every person is going to manage a group of workers the same way, but there are predefined terms to describe how managers manage. There is the autocratic style, t he democratic style, the chaotic style, and managementRead MoreThe Autocratic Management Style As A Non Effective Style1077 Words   |  5 PagesThe Autocratic Management style is not hard to distinguish in the workplace. Opinions are kept to themselves concerning the firm’s approach to cases, and all employees know what they are expected to do and not do. In this management style only one attorney is in charge and he or she resolves all issues. This type of management style can be thought of as more of a dictatorship. They can be found in small-scale offices and there is only one attorney proprietor. The staff is never in doubt aboutRead MoreAn Introduction to Management Styles3058 Words   |  13 PagesUnit 4001 - An Introduction to Management Styles 1. Be able to understand assumptions about human nature and managerial behaviour. 1.1 Identify models which make suppositions about human nature and behaviour at work Theory X and Theory Y represent two sets of assumptions about human nature and human behaviour that are relevant to the practice of management. They describe two contrasting models of workforce motivation. Theory X represents a negative view on of human nature that assumes individualsRead More4001 Management Styles3336 Words   |  14 PagesUNIT 4001 – An Introduction to Management Style By: Peter Collins Candidate Number: P04352307 Question 1 a) Select two models that were covered on the training programme, which make suppositions about human nature and how people behave at work, and briefly describe them. b) With reference to these models, discuss how individual attitudes and assumptions can influence your behaviour as a manager. Question 2 a) Describe the three management styles of Laissez-Faire, Participative and AutocraticRead MoreThe Relationship between the Structure, Culture, and Management Styles in Tescos1070 Words   |  5 PagesThe Relationship between the Structure, Culture, and Management Styles in Tescos There is a clear relationship between the structure, culture and management styles in Tescos here are some examples showing this: Tescos uses power culture which has a top down (tall structure) whereby objectives are determined by the individual or individuals. This structure is also linked in with an autocratic management style as this structure tends to have a ‘them and us attitude’ whichRead More The Management Style at Cadbury Essay1083 Words   |  5 PagesA description of the management style used at Cadbury There are three main management styles that a business can have these are:  · Democratic  · Consultative  · Autocratic  · Laissez-faire Cadbury’s management style is democratic. This is when all members of staff work together as a team. The managers listen to the other employees ideas and suggestions before they go ahead with decisions. If ideas are found to be achievable and successful by the senior group, then it is taken forwardRead MoreOrganizational Theories and Management Styles1585 Words   |  7 PagesOrganizational theories and management styles are key factors in the success of an organization. These theories can determine the structure of the organization by defining the best way to organize and work employees and by helping the organization adapt to its environment. Organizations and managers are unique in their own way; however most organizations and managers can be grouped into categories or types depending on their organizational or management styles. Organizational Theories Organizational

The Crucible Essay Essay Research Paper It free essay sample

The Crucible Essay Essay, Research Paper It is a drama with enormous feelings with many inside turns hidden in the archives of the true narrative. It is a drama with emotional feelings, feelings of choler, hatred, immorality, use, good, and purity. It is the The Crucible. In the drama, Arthur Miller develops the thought that strongly held beliefs direct people? s behavior, Abigail Williams who accuses others to get away from penalty, Mary Warren who chooses to lie to maintain herself out of problem, and John Proctor who chooses to give his life to salvage the lives of other guiltless people. Arthur Miller develops Abigail Williams as an evil character. She tempts Proctor into lechery, and come its illegal Acts of the Apostless which all are against the Puritan faith. To get away penalty for dance, she deflects the actions and blames them on person else, and does non care how many lives she destroys. We will write a custom essay sample on The Crucible Essay Essay Research Paper It or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Subsequently when she grows into power and influence, she seems to bask directing these guiltless people their deceases. She besides uses evil actions disguised as good by acknowledging who was with the Satan, ? She sends her spirit on me in church ; she makes me laugh at supplication! ? ( P.44 ) Obviously the people she accuses are really guiltless, but she has the ability to pull strings Judge Danforth into believing that she is making the right thing and stating the truth. Mary W arren? s purposes at the beginning of the narrative were to make good and justness. But she sees that when she is in problem, she besides needs person to debar the penalty on. This greed consequences in her stating that John Proctor was associated with Satan, and that he possessed her and made her do all of incorrect actions, ? You are the Devil? s adult male! I? ll non hang with you! I love God, I love God. ? ( P.118 ) Her purposes were foremost good, but so her actions turned into evil, merely like Abigail Williams. John Proctor is the supporter in the drama. He is a hero at the terminal of the drama, when he falsely admits that he was with Satan all a long. He so refuses to state the justice and accuse anyone of being with Satan excessively like Abigail did. Therefore he may be considered a hero, for deceasing for a cause of salvaging the lives of other guiltless people. John Proctor besides tries to support his married woman, and efforts to do the justice recognize how Abigail Williams is pull stringsing him. In decision, Arthur Miller develops the thought that strongly held beliefs direct people? s behavior. The forces of good ever tried to make what was the best for everybody, even if it meant interrupting some Puritan Torahs. The evil group did whatever was best for themselves. They were greedy, and had no consideration of others. Bibliography English and Social Studies Department

Domain Extensions An Essential Guide - How to Choose One and Why

Your domain extension is the part of your domain that comes after the final dot. For example, ours is .com. And while .com is the most well-known option, you actually have a ton of options when it comes to domain extensions, which is why you might be looking for some help making your choice.In 1985, only nine domain extensions existed. Up until the 90s, about nine or ten domain extensions were added each year. After that, it was off to the races.At the time this article is being written, you can choose from over 1,000 domain extensions (you can see the  entire list on the IANA (Internet Assigned Numbers Authority) website).The strange thing is that you probably only know a handful of them: .com, .gov, .net, .org, .edu, then maybe some country domain extensions like .us.But that raises the question, whats the point of all of these domain extensions and are there advantages for the average business, blogger, or developer?Thats what well answer in this post! Some domain extensions hav e an obvious purpose like .blog, while others might seem a little strange at first like .gs. Generally, all the domain extensions you see are designed to complete one or more of these functions:Help with branding for an individual company or an entire industry Like .aarp  or .realtor.Indicate that a website is located in a certain country. This is useful for companies that only serve those countries and to break up the Internet into languages and currencies Think .cz  for the Czech Republic or .de for Germany.Serve a specific community, based on geographic  location, ethnic, technical, or other categories. The .asia  domain extension is a good example, since it focuses more on a regional community as opposed to one country.Restrict usage of the top-level domain  for people or organizations in a certain group. Take .edu, for example. Youre only able to use that  domain extension if you run an accredited educational institution. The same can be said for many country or regional domains, where you must be a citizen of, or have a business in, the country.So, which  domain extensions can you use for your website?That depends on what type of organization youre running and which domain name extension youre looking at.Domain extensions are either considered:Restricted   you need to meet certain criteria to purchase one of these domain name extensions.  Many of them have been paid for (sponsored) by an organization or set aside for certain groups.Unrestricted   anyone can purchase a domain name with one of these extensions.If you search on a domain name registrar like GoDaddy or Namecheap, you can pretty much guarantee that most of the results are  unrestricted extensions:One of the only types of restricted domains sold through sites like GoDaddy is a country  domain extension. So, .us can be bought directly online, but you must prove that youre a permanent resident of the United States.As for most restricted top-level domains, you typically need to be part of an organization, industry, region, or another type of group to get the  domain extension. In addition, youre required to contact the top-level domain owner and walk through their unique vetting and purchasing process.A great example is the .aero  domain extension. This top-level domain was paid for, and is now sponsored by, an organization called  Societe Internationale de Telecommunications Aeronautique (SITA). This sponsor has rules on its top-level domain, saying that in order to use it your company must be in the air transportation industry.Pricing of a .com vs other domain extensionsTheres a good deal of variation in the price of different domain name extensions.For unrestricted domains, the pricing is usually very inexpensive. Standard domains with extensions like .com usually cost around $10 per year.Some lesser-known unrestricted extensions cost even less:If youre planning on buying a restricted domain, you may have to pay a premium, though. However , this all depends on the owner of that top-level domain  and each top-level domain extension has a different price.Which of these domain extensions should you go with?To start the process, consider what type of business or organization youre trying to represent online.If its in a certain industry, you might be able to apply for a restricted domain extensionlike a real estate agent applying for the .realtor extension.If youre only conducting business in a certain country, you might want to stand out with a country-based extension like .us. Beyond branding, you can also use a country-specific domain name to indicate to Google that your site targets that region (explanation here).If youre targeting people around the world, your best bet is unrestricted domain extension, though.For this, you have a few options:1. Try to get a standard unrestricted  domain extension like .com or .netTheres nothing wrong with these, as long as youre not choosing .net because another company has the s ame domain as you. Thats a branding nightmare if there are two websites with nothing different but a domain extension.Other than that, you can go with a .com or .net  domain extension if its available. The .coms of the world are easy to remember as long as whatever you put in front of the .com is short and to the point.2. Consider a unique unrestricted domain that relates to your businessThis is where you can really specify what it is you do. An online store might enjoy the .store option, while a country club could go with .club to show some exclusivity in the domain name.3. Get really creativeDelicious, the pinboard blog, has one of the most unique domain names out there. It utilized the .us  domain extension and made its domain name del.icio.us.Some other examples are great for branding, such as Last.fm (music streaming) and thegreen.diet (a domain stating, literally, what the site sells).So, I encourage you to think creatively when making your domain and dont forget about som e of those  domain extensions that make for branding dreams!And if you need help, you can always use a blog name generator, or check out some other tips for choosing a domain name.That wraps up our post! If you have any questions about how or why you might choose a top-level domain, let us know in the comments below. Here's how all those #domain extensions work, plus how to pick one for your #WordPress #website

Profile of Pope Clement VI

Profile of Pope Clement VI Pope Clement VI is an important figure in Medieval History. Key Facts Pope Clement VI was also known as Pierre Roger (his birth  name). Accomplishments Sponsoring a naval crusading expedition, buying land for the papacy in Avignon, patronizing arts and learning,  and defending the Jews when pogroms flared up during the  Black Death. Occupation: Pope Place of Residence and Influence: France Important Dates: Born:  c.  1291Elected pope: May 7, 1342Consecrated: May 19, 1342Died:  1352 About Pope Clement VI Pierre Roger  was born in Corrà ¨ze, Aquitaine, France, and entered a monastery when he was still a child. He studied in Paris and became a professor there, where he was introduced to Pope John XXII. From then on his career took off; he was made  abbot of Benedictine monasteries at Fà ©camp and La Chaise-Dieu before he became archbishop of Sens and Rouen and then a cardinal. As Pope, Clement  was strongly pro-French. This would cause difficulties when attempting to broker peace between France and England, who were at that time engaged in the decades-long conflict that would come to be known as the Hundred Years War. Unsurprisingly, his efforts saw little success.   Clement was  the fourth pope to reside in Avignon, and the continued existence of the Avignon Papacy did nothing to lessen the problems that the papacy  had with Italy. Noble Italian families disputed the papacys claim to the territory, and Clement sent his nephew,  Astorge de Durfort, to settle matters in the Papal States. Though Astorge would not be successful, his use of German mercenaries to aid him would set a precedent in papal military matters that would last another hundred years. Meanwhile, the Avignon Papacy persisted. Not  only did Clement turn down an opportunity to return the papacy to Rome, but he also purchased Avignon from Joanna of Naples, whom he absolved of her husbands murder. Pope Clement  chose to stay in Avignon during the  Black Death and  survived the worst of the plague, though a third of his cardinals died. His survival may have been due, in large part, to his doctors advice to sit between two huge fires, even in the heat of summer. Though it wasnt the doctors intent,  the heat was so extreme that plague-bearing fleas couldnt get near him. He also offered  protection to the Jews when many were persecuted under suspicion of starting the pestilence. Clement  saw some success in crusading, sponsoring a naval expedition that took control of Smyrna, which was given to the Knights of St. John, and ended its pirate raids in the Mediterranean. Spurning the idea of clerical poverty, Clement  opposed extremist organizations like the Franciscan Spirituals, who advocated absolute rejection of all material comforts, and became  a patron of artists and scholars. To that end, he enlarged  the papal palace and  made it a sophisticated center of culture. Clement was a generous host and a magnanimous  sponsor, but his lavish spending would deplete the funds his predecessor, Benedict XII, had so carefully amassed, and he turned to taxation to rebuild the papacys treasury. This would sow the seeds of further discontent with the Avignon Papacy. Clement died in 1352 after a short illness. He was interred as per his wishes at the abbey at  La Chaise-Dieu, where 300 years later Huguenots would desecrate  his grave and burn his remains. More Pope Clement VI Resources Pope Clement VI in Print Clement VI: The Pontificate and Ideas of an Avignon Pope (Cambridge Studies in Medieval Life and Thought: Fourth Series) by Diana Wood Pope Clement VI on the Web Pope Clement VI, Substantial biography by N. A. Weber at the Catholic Encyclopedia.

Internet Addiction and College students Essay Example | Topics and Well Written Essays - 1000 words

Internet Addiction and College students - Essay Example Tan (2001) said that the Internet use plays a major role in education for students as well as for the professionals to make things easier; it greatly enhances the learning and practices of individuals and that it is meant to cause students learning and their performance at their performance at the higher-level Mayer (2000). However, there are reports that reveal, there are negative effects brought by heavy Internet use on one's psychological wellbeing (Young, 2004). Anderson (2000) explained that, internet dependent students' average use reached about 29 minutes per day. These users utilize synchronous communication internet application nearly ten times more than the non-dependent students, who only spent an average of 3 minutes per day doing the same activities due to the fact that, users are able to get quality information from internet facilities (Asemi 2005). However, there are reports that reveal, there are negative effects brought by heavy Internet use on one's psychological wellbeing (Young, 2004), with 8% - 13% of undergraduates allegedly addicted to internet use. The said uses have resulted to impairment among individuals' psychological well-being, academic performance and peer and family interactions (Scherer, 1997 Young, 1998). Moreover, this phenomenon of extreme use has been known as "Internet addiction (Young, 2004) and "problematic Internet use" (Caplan, 2002 & Shapira, et. al. 2003).The American Psychologist Association has prescribed criteria as basis whether or not a person be diagnosed for internet addiction disorder, and these are as follows: (1) Tolerance, which refers to individual's need for increasing quantity of time consumed on the Internet for satisfaction purposes; (2) Two or more withdrawal symptoms that develop in days until one a month or even after; (3) Use of the Internet in order to alleviate or avoid withdr awal symptoms; (4) The Internet is repeatedly accessed more often; if not, for longer periods that the intended time; (5) The individual loss of an important relationship, or still at risk of losing; loss of job, educational or career opportunity due to the excessive use of the Internet, and several other reasons.Bratter and Forest (cited by Freeman, 1992) characterized addiction as "a behavior pattern of obsessive drug use due to overwhelming involvement. Psychologist Kimberly S. Young, investigation nearly 500 heavy Internet users by compared their behaviors. Using the clinical criteria formulated by the Diagnostic and Statistical Manual of Mental Disorders-IV and was also published by the American Psychiatric Association; results showed that, eighty percent (80%) of the participants were dependent Internet users. She further elaborated that, "internet use can disrupt an individual's social, academic, financial, and professional life just as the same with other well-documented add ictions" (Young, 1996). Psychodynamic and personality perspectives can be accounted for addiction during early childhood traumas, relationship with certain personality traits/disorders, as well as inherited psychological dispositions (Sue,

Wk 2 discussion questions Essay Example | Topics and Well Written Essays - 250 words

Wk 2 discussion questions - Essay Example This will help him feel successful. I remember that in grade school I was a not a good math student. Everything was fine in math class until 4th grade. That is when multiplication and division was introduced. I understood addition and subtraction and working with decimals, but multiplication was very hard for me to grasp. I was weak in my math skills going into 5th grade. My teacher worked with me until Christmas break to help me learn my multiplication tables. She was emotionally supportive through this entire process by rewarding and recognizing all of my successes. She never made me feel as though I was wasting her time or that I was a burden. She made it clear that everyone learns how to do math in his or her own way and in his or her own time. When I returned from Christmas break, I thought I was finished with my tutoring sessions with the teacher, but to my surprise they were just beginning. I was still having trouble memorizing the multiplication tables, so my teacher began to keep me inside from recess. I hated this, but I never remember feeling as though I was being punished. The kindness my teacher used, and her unwavering firmness in insisting I learn these math facts, was a great support to me as I progressed through the year. Her emotional support helped to make me a