Formulas of Ionic Compounds

Formulas of Ionic Compounds Ionic compounds form when positive and negative ions share electrons and form an ionic bond. The strong attraction between positive and negative ions often produce  crystalline solids that have high melting points. Ionic bonds form instead of covalent bonds when there is a large difference in electronegativity between the ions. The positive ion, called a cation, is listed first in an ionic compound formula, followed by the negative ion, called an anion. A balanced formula has a neutral electrical charge or net charge of zero. Determining the Formula of an Ionic Compound A stable ionic compound is electrically neutral, where electrons are shared between cations and anions to complete outer electron shells or octets. You know you have the correct formula for an ionic compound when the positive and negative charges on the ions are the same or cancel each other out. Here are the steps for writing and balancing the formula: Identify the cation ( the portion with a positive charge). It is the least electronegative (most electropositive) ion. Cations include metals and they are often located on the left-hand side of the periodic table.Identify the anion ( the portion with a negative charge). It is the most electronegative ion. Anions include halogens and nonmetals. Keep in mind, hydrogen can go either way, carrying either a positive or negative charge.Write the cation first, followed by the anion.Adjust the subscripts of the cation and anion so the net charge is 0. Write the formula using the smallest whole number ratio between the cation and anion to balance charge. If the charges of the cation and anion are equal (e.g., 1/-1, 2/-2, 3/-3), then combine the cation and anion in a 1:1 ratio. An example is potassium chloride, KCl. Potassium (K) has a 1- charge, while chlorine (Cl-) has a 1- charge. Note that you do not ever write a subscript of 1.If the charges on the cation and the anion are not equal, add subscripts as needed to the ions to balance the charge. The total charge for each ion is the subscript multiplied by the charge. Adjust the subscripts to balance charge. An example is sodium carbonate, Na2CO3. The sodium ion has a 1 charge, multiplied by the subscript 2 to get a total charge of 2. The carbonate anion (CO3-2) has a 2- charge, so there is no additional subscript.If you need to add a subscript to a polyatomic ion, enclose it in parentheses so it is clear the subscript applies to the entire ion and not to an individual atom. An example is aluminum sulfate, Al2(SO4)3. The parenthesis around the sulfate anion indicates three of the 2- sulfate ions are needed to balance 2 of the 3 charged aluminum cations. Examples of Ionic Compounds Many familiar chemicals are ionic compounds. A metal bonded to a nonmetal is a dead giveaway that youre dealing with an ionic compound. Examples include salts, such as table salt (sodium chloride or NaCl) and copper sulfate (CuSO4). Compound Name Formula Cation Anion lithium fluoride LiF Li+ F- sodium chloride NaCl Na+ Cl- calcium chloride CaCl2 Ca2+ Cl- iron(II) oxide FeO Fe2+ O2- aluminum sulfide Al2S3 Al3+ S2- iron(III) sulfate Fe2(SO3)3 Fe3+ SO32- Ionic Compound Formulas

JUVENILE DELINQUENCY AMONG MINORITIES COMPARED TO NON-HISPANIC WHITES Research Paper

JUVENILE DELINQUENCY AMONG MINORITIES COMPARED TO NON-HISPANIC WHITES - Research Paper Example ermining the nature of a child but in order to solve the problem related to childhood delinquency the most important aspect is to realize the requirement of a child and provide him with proper emotional nourishment, going beyond the extent of social, cultural or religious discrimination. At the same time, parents also have to be more tolerant and understanding; consequently they must also realize that their arbitrary actions can harm the child worst in their psychology. Providing proper support to children, especially when it comes from parents, is the best possible way to reduce the problems related to juvenile delinquency. The increasing peace of social cosmopolitanism, though on several occasions, has been encouraged by sociologists with the expectation that it reflects the ideals of social tolerance and harmonized existence, however, in reality, the entire situation is far from being real. Globalization, evolution of human rights and revoking the principles of universal brotherhood are some of the important factors that aspired scholars, intellectual and common people to wish for a better socio-cultural existence. The reality has emerged as quite contradictory to the expected situation and by remaining far from realizing the basic aspects of human existence, people have remained hostile against accepting religious, racial and cultural differences normally and they have remained on an uncompromising stance in providing adequate recognition to their fellow counterparts that have different social, religious and cultural upbringing. The social structure of nations like the United States is a bright exam ple in support of the observation as cultural and racial conflicts are predominating factors, emerging as essential barriers when it comes to attainment of social tranquility and harmony. Among several factors, such as, racial tensions, cultural discrimination and socio-religious oppression, juvenile delinquency among minorities is one of the most predominating

Management decisions Essay Example | Topics and Well Written Essays - 250 words

Management decisions - Essay Example First and fore most, visual interface for decision flow creation should be evident within the management system. This however, means that each techie in the line of engineering field should learn new tools and techniques each week or even months. I must however, ensure that flexible management of multiple decision flows are met since the technological environment do changes faster with time. Ability to use data from external data sources as well as other systems is an aspect that I should put in mind and manipulate. In addition, building scorecards and models within the employees is an aspect that I should consider since they trigger the evolution of new technologies and bring about management solution. Other solution to the prevailing management issue like defining flexibility between different participants and their decision making process should be given a forefront action to avail effectiveness in the management decisions which incur positive result in management mechanism. Summarily, it is therefore important while am making decision in my company to make sure that both portfolio and the projects within the company components are

Sport mgmt Essay Example | Topics and Well Written Essays - 1250 words

Sport mgmt - Essay Example This paper then aims to create a career plan focusing on sports based on learning and insights on the career path of Cristiano Ronaldo in football. He has been chosen due to his recognition and performance in this sports field. A section of the paper will allocate a discussion of his career as the basis for creating the personal five year career plan. The plan will include specific goals and methods on how this can be achieved. Football in the World and Qatar Football was recognized to come from Britain, which is widely played during the 1700s in from courts to narrow streets of the urban communities (Murray B. and Murray W. 2). However, historical accounts suggest that the game was played in Asian countries and the United States. This means that football is already a global sport long before the founding of the world cup tournaments. It can be associated that this is a primary reason for the world’s increasing interest in the sport. In UAE, the football association exerted en ormous effort in promoting the sport (Al Abed et al. 302). Despite the current ranking in FIFA World Cup, Qatar invested its wealth on football as evident in the UAE’s success, completed tournaments, and sponsorship deals. In implication, Qatar and UAE encourage the increase of interest in the sport, and inculcate it to be part of their culture and education. Hence, it is not unexpected that many enthusiasts would aspire to pursue a career in football. In relation to the career plan, it is important to be aware of the facts and the roots of the game to understand the impact and significance of the sport to a person and to the world. Moreover, this will provide a view of opportunities for becoming a player. Cristiano Ronaldo Cristiano Ronaldo has been selected to be an icon for this career plan due to his successful career in football. He has been identified as one of the top best football player of his time. This star is currently playing for Real Madrid, who is considered to be the best winger who has played in the world cup (Greaves and Giller). His skills are a combination of his own and that of other of acclaimed players. This Portugal-born player commenced his football career when he joined the Sporting Clube de Portugal (Coutinho 32). This player already shined in the Portugal team with 69 international games and 22 goals scored. However, Ronaldo has been a frequenter in the national games as he played for Under-17 and Under-20 to 22. These exhibit that even at an early age Ronaldo’s skills and abilities as a player has brought him to the international stage and a glorious high point. It was not until 2003 that he was transferred to Manchester United and Real Madrid in 2009. This paper deemed that his exposure to different teams further developed his skills and performance as it introduced various playing techniques. Ronaldo is equipped with speed and excellent ball control that shaped him as the world’s most fatal winger (Coutinho 3 2). His dexterity paved way for his nomination as FIFA World Soccer Player in the year 2008, and runner-up in 2009. Aside from his skills, he is also highly professional. His former coach (Jose Mourinho) admired Ronaldo for being the most professional player he has met (Richards, Coaching Ronaldo). This may be one of the factors that pushed Ronaldo’s growing career. Apparently, abilities should be coupled with right attitude to attain and retain success. Ronaldo also received a fair

Critically Consider the Importance of Public International Law to Essay

Critically Consider the Importance of Public International Law to International Business - Essay Example The universal international laws are those laws which govern the relations of one State with all the States in international arena however; particular international law may only be governing the relationships and conducts of one State with another State. (Bederman, 2002) At a larger scale, public international law governs the relationships of the States with each other and plays critical role in authoring treaties and formal agreements between the States. However, if States agree with each other, the overall scope of the law can also be extended to the individual persons and organizations. What is however, critical to note that in public international law, the political and legal elements are closely intertwined with each other hence the overall implications of the public international law can be significant for the nations. (Aust, 2010) The most important issue which has remained the cause of debate is whether States should only be the subjects of international law or should other s ubjects be also brought under its ambit. Public International law and International Business The debate on increasing the scope of international law beyond States therefore outlines that the international business firms, intergovernmental organizations and other relevant bodies should also be brought under the scope. It is because of this reason that Public international law is now applicable on the individuals, relationships as well as transactions which take place across the borders. International law not only governs the use of common resources of the world but also provides framework for managing the transnational problems faced by the international business firms. (Shaw, 2003) The advent of globalization as well as the spread of the communication technologies also necessitated the... This essay approves that public international law governs the domain of States and their relationship with each other however, over the period of time, its scope and application has increased. The subjects of international law are not now just limited to States and how their relationships are governed however; international organizations are also increasingly coming under the ambit of this law and are greatly affected by the international law. This paper makes a conclusion that one of the key elements of international law is that it governs the bilateral agreements between the States. Bilateral agreements however, also provide required level of protection to the international firms in terms of getting protection of their investment. Foreign direct investment is one of the ways through which international firms make entry into the international markets. However, without bilateral agreements between the States, it may be difficult for international firms to take advantage of such opportunities. International law also can provide a very safe conduit to the international firms for settling their disputes with their host countries. Dispute settlement as well as the settlement of the international financing can be effectively done with the help of international law. Another important significance of international law for the international firms protection provided to their intellectual property. International law can also provid e support to the international firms in dealing with issues like child labor, unfair labor practices as well as human rights issues.

K-12 national Education Technology Standards for teachers Essay

K-12 national Education Technology Standards for teachers - Essay Example Further they must become aware of the dangers of misusing these tools whether it is for publication purposes or for depending wholeheartedly on the accuracy and possible bias of electronic sources. Technologies available to teachers in K-12 education According to Hannafin and Vermillion (2008) the technologies that are available to teachers to facilitate teaching, learning and communications include ‘educational (nonadministrative) uses of computers, peripherals, curriculum and productivity software, personal digital assistants (PDAs and other wireless devices, as well as all Internet-enabled applications (e.g., e-mail, Web sites, Webquests, wikis, Massively Multi User Virtual Environments (MMUVEs), vidcasts, Web conferencing, online discussion boards, simulations, course management systems, games, simulations, podcasts, blogs, digital storytelling).’ Computers through the use of the Word processor for writing or Excel for Mathematics can be used to enhance reading and w riting, personal digital assistants which offer audio recording, the various Internet applications, and software has been created for almost every imaginable curriculum content therefore they should be available to teachers.

The building institute of training and developing Essay

The building institute of training and developing - Essay Example The process of demolishing and rebuilding is a process of perciceness, safety, professional surveying of the project so it is done correctly, and cost effectiveness. It is a basis process which from start to finish of making sure that all regulations are correctly handled, and that the process is done accurately.The process of removing as-pesos must be done with the windows shut so that it does not escape from the house. This then makes it so that you can remove the asbestos quickly from the front door and bring it in a proper disposal unit. Then the stench of asbestos does not remove. The employees removing the asbestos protect their health. Asbestos is a very dangerous problem when inhaled or gotten on the skin, so the overalls must cover every inch of the body, and protect the one that puts the asbestos in the proper dumping mechanism. It must be disposable so that it does not contaminate any area which the clothes may be. Washing the clothes may ruin a washer with putting the che mical in it, so it is policy that the clothes are disposable.Air conditioner sheets must be removed and not reused due to circulation within the air vents of asbestos. This way it prevents any asbestos that gets in the air ducts from contaminating the house. The air conditioner vents must be removed and replaced to ensure that none leaks from the air vent and gets any in the house once the project is finished. The air conditioner parts must be taken down and ready to be cleaned at the end of the project. ... then the overalls and masks used by the personnel are thrown away with the asbestos TASK 2 The type of loads are important. There are relevant loads that must be used. There are the basic parts of the home that must be loaded up along with the different parts of the gutted interior. This would include the basic framework of the innards of the house; which could probably just be brought out the front door. You may want to remove all of the old interiors, all of the floor boards, and correctly tear down the home; leaving loads for the construction. They may want to tear down the floor boards, the roof, and organize it in loads of efficiency. This can then be done problematically and automatically. This process then tears down the home and makes it cost efficient once all of the parts of the home are removed. TASK 3 There are several needed professionals which you must acquire to then commence with building. You must first consult an Architect, who will draw out the basic lay out off the home. You consult with him with how much space you want in the rooms, how many rooms it has, and what you want the basic layout of the house to be like. He will draw out a design trying to meet your specifications. The architect must then work with a residential designer, which scopes out the zoning procedures of the neighborhood in which the house is being built. This will make sure that the lay out the architect has drawn match the houses in the area, and meet zoning restrictions of how you are allowed to build a house in the area. A designer then designs the basic details of the house working with them and the residential designer makes sure the set up