The Difference Between a Cation and an Anion

The Difference Between a Cation and an Anion Cations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion. Ions are atoms or molecules which have gained or lost one or more valence electrons, giving the ion a net positive or negative charge. If the chemical species has more protons than electrons, it carries a net positive charge. If there are more electrons than protons, the species has a negative charge. The number of neutrons determines the isotope of an element  but does not affect the electrical charge. Cation Versus Anion Cations are ions with a net positive charge. Cation Examples: Silver: AgHydronium: H3OAmmonium: NH4 Anions are ions with a net negative charge. Anion Examples: Hydroxide anion: OH-Oxide anion: O2-Sulfate anion: SO42- Because they have opposite electrical charges, cations and anions are attracted to each other. Cations repel other cations and anions repel other anions. Predicting Cations and Anions Sometimes, you can predict whether an atom will form a cation or an anion based on its position on the periodic table. Alkali metals and alkaline earth metals always  form cations. Halogens always form anions. Most other nonmetals typically form anions (e.g. oxygen, nitrogen, sulfur), while most metals form cations (e.g. iron, gold, mercury). Writing Chemical Formulas When writing the formula of a compound, the cation is listed before the anion. For example, in NaCl, the sodium atom acts as the cation, while the chlorine atom acts as the anion. When writing cation or anion symbols, the element symbol(s) is listed first. The charge is written as a superscript following the chemical formula.

Relativism-Religion Term Paper Example | Topics and Well Written Essays - 5250 words

Relativism-Religion - Term Paper Example In the modern America, most university students endure a level of intellectual frustration through his academic years. This book provides an understanding of the utility of ancient philosophy and is enriched with true knowledge of mankind’s existence. Bloom’s book portrays a critical view of the modern universities and their education system. Bloom says that the education system fails to stimulate the students as it cannot connect with their aspirations. He has essentially taken a pessimistic view of modern education system as cultivated by university professors. Critics have assessed the book as an attempt to undermine all the liberal professors by conservatism. In reality, Bloom supported the theories of the old philosophers since he believed that they were the ones who searched for spiritual answers that are roots to man’s creation. He takes a critical view of the modern philosophers whose lucid analysis of language fails to explain the ethical and political a spects. The modern professors of literature take a skeptical view of truth and morality that are promoted by genuine philosophy, thus narrowing the intellects of students. According to Bloom, only the study of ancient philosophy can make students comprehend the existence of mankind and get connected with the profundity of life. Bloom cannot be considered as a conservative; he simply wants the modern students to question about existence. In the contemporary world, students of all social and economic backgrounds are confined to the narrow view of life, thus getting more disconnected from the ancient thoughts. The minds of the American people are incapable of understanding the concepts of life and existence as they are instilled with distorted ideas. Bloom stresses that the modern professors cannot understand life’s profound questions let alone finding answers to those questions. The ancient philosophies like Pluto and Socrates can act as guide for liberation of thought, but the y are eclipsed by contemporary liberal philosophy. Bloom lists â€Å"reason-revelation, freedom-necessity, democracy-aristocracy, good-evil, body-soul, self-other, city-man, eternity-time, being-nothing† as polar opposites and says that â€Å"a serious life means being fully aware of the alternatives, thinking about them with all the intensity one brings to bear on life-and-death questions, in full recognition that every choice is a great risk with necessary consequences that are hard to bear.† (Bloom, 1988, p.127) Bloom argues that modern education does not encourage students to confront these polarities, thus they remain ignorant of life’s choices of good and bad. Bloom’s attempt is to make students aware of the myriad concepts of mankind, and that they must deal with these ideas to lead a philosophical life. The major portion of this book focuses on portraying a contrasting view between the modern and ancient philosophies and mind-sets. It says that hu man beings today are more interested in pursuing commercial pleasures, and that the value of philosophical search for truth is being largely ignored. In the book Beyond Good and Evil, the author Friedrich Nietzsche has stated that human beings are inquisitive in nature because of their thirst for truth. Nietzsche argues that the world is divided into opposite values, and the connection between the opposites is a complex philosophy. He says that human beings are so immersed in prejudices and false notions that whatever man considers as truth is actually a manifestation of his own falsehood. The conscious thinking of man is contrasted by his instinct, although Nietzsche believes that instinct is the source of information for conscious thinking. He says that falsehood is the

Marketing Research Methods Essay Example | Topics and Well Written Essays - 2750 words

Marketing Research Methods - Essay Example Hafalarf, a Lloyds Insurance syndicate is thinking of underwriting a policy to cover students. A market survey needs to be done to determine the level of cover currently in place, examine the attitude of the students to buying insurance cover, and identify the different kinds of insurance available in the market. This paper is in the form of a project report to identify the feasibility of Lloyds entering the college-level insurance sector for students. What is Insurance Web definition: Insurance is a plan in which individuals and organisation who are concerned about potential risks, pay premiums to an insurance company, who in return, will reimburse them if there is loss. To generate a profit, the insurer will invest the premiums it receives. Insurance is covered for almost all products except those that are caused by natural calamities such as, Earthquakes, landslide, hurricane. Insurance cover life, health, home, work, studies, mortgage, etc. Whereas in most cases the insured is paid for his or her loss, with life insurance a beneficiary is paid when the insured person passes away (www.environmentalinvestors.com/glossary/ilIneIns.htm). Insurance, in law and economics, is a form of risk management primarily used to hedge against the risk of potential financial loss. it is contract in which one party agrees to pay for another party's financial loss resulting from a specified event. An entity seeking to transfer risk (an individual, corporation, or association of any type) becomes the 'insured' party once risk is assumed by an 'insurer', the insuring party, by means of a contract, defined as an insurance 'policy' (Insurance Information: The Insurance Facts You Need to Know!, http://www.summarized.org/insurance-information.htm). 3.0 Insurance and the global market 2002 was a year of turmoil for the international insurance and reinsurance industry, as many companies faced contrasting fluctuations and challenges. Investment returns fell further, making the need to achieve real underwriting profits even more important. Ratings agencies implemented an unprecedented downgrading of their assessments of the industry's financial strength. Losses under policies written in the latter years of the 1990s required insurers and re-insurers to make substantial reserve additions for billions of dollars. The awareness of risks arising from potential terrorist acts threw many insurers' traditional pricing methodologies out of order. Some companies failed, others withdrew, and a clutch of new competitors joined the global market. Some capital providers fled the sector; others redoubled their commitments. 4.0 Students Insurance Student Medical Insurance is ideal for students who are no longer covered as a dependent under their parents insurance, or who are attending school outside

The Negative Impacts Of Soil Erosion Environmental Sciences Essay

The Negative Impacts Of Soil Erosion Environmental Sciences Essay Soil erosion is a process whereby soil (mostly the top fertile soil) is transported or swept away from its natural environment then deposited to other places. This usually happens as a result of blowing wind, water flow, rainfall, by the force of gravity (down slope movement of soil) and human together with animal activities. Erosion is a natural process although it has been seen to rise due to extensive use of land and more so in the agricultural industry. The reduction of soil cover and the cutting down of trees also triggers soil eroison. Agricultural land that is used on the industrial scale is seen to be the most affected as it is subjected to greater rates of erosion. This is evident especially when there is the use of tillage which clears vegetation covering the soil while disturbing soil structures together with roots holding soil particles together. Soil erosion triggers a number of impacts but the main area of concern in this report is soil degradation by erosion affecting the worlds food supply. Soil is taken to be the worlds most valued resource. The loss of this resource, through land degradation processes such as wind and water erosion, is one of the most serious environmental problems we are faced with as it is destroying the means of producing food (Willett, 89). This is a problem that affects the whole world as food is a basic need. Erosion, takes away the best organic matters, it tempers with the depth of the top rich soil, reduces the soils capacity to hold water, and affects the soil biota. Rainfalls beneficial impacts are reduced too due to increases in water runoff and reductions in the soils water holding capacity. Taken together or separately, these factors limit the soils productivity and, as a result, can reduce crop yields from 15 to 30 percent (Pruski, 15). A research carried out by the U.N showed that about 11% of the worlds best soils (which are as big as size India and China put together) have been spoiled by our activities from as early as 1935. About 9 million hectares of arable land have been irreversibly damaged by erosion through overgrazing, deforestation and unsustainable agricultural practices. A further 1.25 billion hectares is considered to be seriously degraded and could be restored only at great costs (Hinkel, 81). There are many examples showing that erosion has really affected the worlds food supply. This one is explained by Lal who reveals that: Erosion is very significant in land degradation that leads to decline in crop production which eventually leads to a drop in the worlds food supply. On a global scale, the annual loss of 75 billion tones of soil through deforestation as a major cause of soil erosion costs the world about US$400 billion in a year (at US$3/ton of soil for nutrients and US$2/ton of soil for water), or approximately US$70 per person a year. It is estimated that the total annual cost of erosion from agriculture in the US is about US$44 billion in a year or about US$247/ha of cropland and pasture. In Sub-Saharan Africa it is much larger; in some countries productivity has declined in over 40% of the cropland area in two decades while population has doubled. Overgrazing of vegetation by livestock and subsequent land degradation is a widespread problem in these regions (Lal, 157).   The production ability of most land that has been subjected to soil erosion is seen to decline up to 40% due to soil erosion brought about mainly by deforestation. The reduction of yields in Africa as a result of erosion is about ten to fifty percent. The total mean loss for the whole continent stands at 9%. Africa is perhaps the continent most severely impacted by land degradation due to soil erosion, with the global average being lower, possibly in the range of 1-8% (Baanante, 224). With increasing land degradation due to erosion and deforestation triggering erosion on a bigger scale, food productivity might actually drop up to 50% necessitating international aid which in turn affects the supply from wherever the food is coming from. With the current rate of population growth and soil erosion it is said that by 2050 there would be a humanitarian crisis as far as food supply is concerned. Another good example is of an East African country (Kenya) which has had severe famine due to lack of enough produce. In Kenya agriculture is taken to be the backbone of the country. The country was initially self sufficient in terms of feeding its people. The famine that affected the country was attributed to soil erosion that occurred mainly by the use of unsustainable agricultural practices that exposed soil to erosion and deforestation. Kenya being a hilly country is highly prone to erosion by gravity. This issue is made worse by unsustainable agriculture that does not take care of the issue of soil erosion. Top fertile soil was extensively carried away leaving behind soil that was not good for agricultural food production. Due to lack of produce in the year 2007 and later rains were not sufficient in the year 2008 a great famine ensued leaving people to boil poisonous wild fruits for hours to extract the poison in order to fix a hot plate (Kamau 17). Research shows that lack of rain again was due to deforestation that is helping desertification in this nation. The country was forced to use all its food reserves to the extent of asking for emergency relief food from international organizations. Generally soil erosion occurs where there is lack of adequate soil cover, putting this in consideration; the situation can only worsen when necessary measures are not taken on time. When erosion continues all fertile soils will be swept away leaving behind soils that are not good for crop production or farming activities. Because of the lack of vegetation on land, rainfall attraction does not take place then a famine may be realized. Many countries having this problem rely on other countries for food supply thus creating imbalance in the supply of food. All this is brought about by not tackling the initial problem that is soil erosion. The percentage of desertification is very high in the world today. In deserts and arid areas very little crop production can take place. Deserts do occur because there is lack of vegetation which is responsible for rainfall attraction and soil cover for water preservation. When soil erosion takes place these areas lack the ability to have vegetation and thus there wont be water retaining capabilities or factors influencing rainfall attraction. What will be left is the soil exposure to wind and other factors that influence soil erosion. The main factor influencing this is deforestation. After sometime these areas lose all agricultural relevancies thus having a negative impact on food supply. Across the world research shows that after soil erosion (especially after over use of agricultural land or tillage erosion) has taken place the remaining soil is not good quality soil for food crops. What is normally done with this is the planting of other crops which can survive harsh conditions and the soils that are left behind. These crops are normally cash crops as food crops need more nutrients to grow. With the current rate of soil erosion most parts of the world lack the capacity to produce food crops and rely on other countries to produce food crops for them. This is also a negative factor to the worlds food supply since the initially food productive areas are unproductive at the time when the populations are high needing more food crops. This also has a negative effect on the worlds food supply. Soil erosion does not only create unfavorable conditions for crop growth through land degradation but as shown by Matende: The implications of soil erosion extend beyond the removal of valuable top soil. This is in regard to erosion brought about by water or rain. Crop emergence, growth and yield are directly affected through the loss of natural nutrients and applied fertilizers in the soil. Seeds and plants can be disturbed or completely removed from the eroded site by water erosion. Organic matter from the soil, residues and any applied manure is relatively light weight and can be readily transported off the field, particularly during spring thaw conditions. Pesticides may also be carried off the site with the eroded soil. This can effect negatively on the supply of food particularly when corrective measures are not taken on time or generally poor yields will be realized (Matende, 234). Wind erosion has also been seen to cause significant losses on food crops. The unavailability of lasting vegetation cover in a lot of areas has led to widespread wind erosion (Bramson, 21). Loose, dry, bare soil is the most susceptible; however, crops that produce low levels of residue also may not provide enough resistance. Wind erosion may also create adverse operating conditions in the field (Mathews, 67). Food crops can be destroyed completely bringing about expensive delays and necessitating reseeding. If not the food crops could are sandblasted and destroyed with the end result being no yield, low yield and poor quality yields that impact negatively on food supply. Off-site impacts of soil erosion are not always as apparent as the on-site effects. Eroded soil, deposited down slope can inhibit or delay the emergence of seeds, bury small seedling and necessitate replanting in the affected areas (Knight, 212). This kind of erosion is normally brought about by water or rainfall. When there are heavy rainfalls soils that are unprotected and do not have adequate cover or are loose due to tillage and human activities can easily be swept away. This type of erosion has its own share of negative effects as far as food supply is concerned as in the event of erosion taking place in wide areas crops will not only be buried but some will be left bare and thus germination will either not take place or the exposed seeds can be devoured by birds and other animals. If corrective measures are not taken on time there will be little or no production at all. This also affects the general food supply in the world today. Therefore as shown in this report various types soil erosion has adverse impacts on the worlds food supply. Nevertheless, enhanced land use practices if embraced can mitigate this situation, using techniques such as terrace building, conservation tillage practices, and tree planting can help reduce soil erosion. When these practices are used properly soil erosion can not only be reduced significantly to about the same rate of soil reform but also the world will realize better food crop production and there will be sufficient food security. Using these methods again food crop yields could increase up to 20% this is in northern America and from about 4 to 17% in Africa.

character analysis essayof Slaughterhouse Five -- essays research pape

  Ã‚  Ã‚  Ã‚  Ã‚  Character Analysis Essay   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Slaughterhouse Five by Kurt Vonnegut   Ã‚  Ã‚  Ã‚  Ã‚  Slaughterhouse Five, by Kurt Vonnegut, is a novel that makes no sense in itself; yet, when put into context individually with today’s events, or life’s events in general, makes more sense then if it were clearly spelled out within the pages. By using the character of Billy Pilgram, Vonnegut conveys his points with Billy’s reactions and common characteristics. Billy Pilgram could not be any more a human then if he was actually walking amongst us. With basic characteristics of simplicity, confusion and general common sense, any one can relate to what Billy is and was going through. By successfully portraying this personality of Billy’s, Vonnegut creates a complex yet oddly simple character for audiences to follow.   Ã‚  Ã‚  Ã‚  Ã‚  For Billy, it truly is a gift to be simple, especially with every thing he must endure. Simplicity is a common trait that most characters in novels lack. Authors are many times trying to create such a complex character that the audience may become lost or even bored with the character. By making Billy so simple, he can create complex events that surround him. With this, Billy shows his general reactions. Without Billy delving deeply into the events, it in fact leaves room for the audience to have their own interpretation of wh...

My First Part-Time Job

This is the my first part-time Job. I had learned so much from this experience. First of all, I learned how to get along with people whom you had only met for the first time. I remember this Job was back in three years ago. I was only 17 and I wanted to do something different this summer instead of Just hanging out at home. When I started looking for one, I realized finding a Job is quite difficult. Thanks to my sister who recommended me to this Japanese restaurant where she works as a manager. After a brief interview, I was accepted to fill this position.I darted to think about all kind of possibilities within this Job. Finally, my first day of work has arrived. My mom took the time and drop me off to work right on time. I was very nervous since I would have to introduce myself in front of everyone and started to learn everything. The first thing I learned was that, when customers come in, you have to say welcome. It was hard for me to say it so loud in front of people. I felt shame on myself for not doing it well. After I stand in front off mirror and practices a lot, I could say it easily. After a few weeks, things started to fall into places and I was familiar with the work.However, one accident happened, I accidentally knock over a bowl of soup on a customer. My first reaction was â€Å"Oh my god! † I was so unguarded and felt so bad. I blamed myself for not being careful. Fortunately, the customer did not get too upset; after that, I paid more attention to work. I get tipped well sometimes when I do a good Job with the help of my co-workers. I had became friends with my co-workers. When I think back, I still miss the time while working there. It was a valuable experience for me. It has taught me important lessons in my life. Hopefully, I would be able to find another Job that is as memorable as this one to me.

Language Acquisition Study Of How Humans Acquire A Set...

Language Acquisition Language acquisition is the study of how humans acquire a set of semantic, syntactic, morphological and phonological categories and rules that underlie their ability to speak and understand the language to which they are exposed. (Parker and Riley, 2005) Language is an understanding that truly makes us human. Yes, other species do communicate with an innate ability to produce a limited number of meaningful words, but there is no other species that can express sentences with speech sounds and words. This ability is truly remarkable in itself. (Lemetyinen, H) What makes it even more remarkable is that researchers are finding evidence of this complex skill in increasingly younger children. Infants as young as 12 months are reported to have understanding to the grammar needed to recognize relevant sentences. After more than 60 years of research in child language development, the device that enables children to slice syllables and words out of the strings of sounds th ey hear, and to acquire grammar to understand and produce language is still quite an enigma. (Lemetyinen, H.) With this being said, there is more than one theorist that is trying to master this enigma. How children learn language is such a mystery to scientist, it is still being studied often. Children acquire their language in such a way that yet to this day cannot be described with just one accurate theory. The Behaviorist Theory One of the earliest studies of language acquisition was doneShow MoreRelatedLanguage Development Paper3685 Words   |  15 PagesLanguage Development 1 Language Development in Children Mary Reed Todd Athens State University Theories Stages in Language Development Language Development Paper July 25, 2011 Language Development 2 Language Development in Children Introduction Read MoreSupporting the Development of English Literacy in English Language Learners22851 Words   |  92 PagesSUPPORTING THE DEVELOPMENT OF ENGLISH LITERACY IN ENGLISH LANGUAGE LEARNERS Key Issues and Promising Practices Diane August August Associates Report No. 61 February 2003 This report was published by the Center for Research on the Education of Students Placed At Risk (CRESPAR), a national research and development center supported by a grant (No. R-117-D40005) from the Office of Educational Research and Improvement (OERI), U.S. Department of Education. The content or opinions expressedRead More The Ebonics Controversy Essay examples5572 Words   |  23 PagesAmerican Vernacular English (AAVE),Jive, Rappin, even the derogatory term of Nigger Talk(Shabaz). The words language anddialect are ambiguous and often interchanged when they should not be, because of the confusion they can elicit. For my own use of the terms, I draw on the commonly available reference book, Websters New World Dictionary. I will use the word language to signify the vocal sounds, words, and the ways of combining them, common to a particular nation. When the termRead MoreSkripsi Bahasa Inggris16760 Words   |  68 PagesTECHNIQUE OF PRESENTATION AT NATYA LANGUAGE SERVICE AND PROGRAM SKRIPSI BY: DIANA AMALIYAH VERAWATI NINGSIH NRM: 99220056 JURUSAN BAHASA DAN SASTRA INGGRIS FAKULTAS BAHASA DAN SENI UNIVERSITAS NEGERI SURABAYA 2005 ABSTRACT TECHNIQUE OF PRESENTATION AT NATYA LANGUAGE SERVICE AND PROGRAM NAME : DIANA AMALIYAH VERAWATI NINGSIH NRM : 99220056 PROGRAM : S-1 MAJOR : PENDIIKAN BAHASA INGGRIS FACULTY : FAKULTAS BAHASA DAN SENI INSTITUTION : UNIVERSITAS NEGERI SURABAYA A research thatRead MoreSantrock Edpsych Ch0218723 Words   |  75 Pagesdevelopment smoother and more continuous? †¢ How do children develop physically, and how does this affect their behaviour and learning? †¢ What is the best way to characterize students’ cognitive development? How might knowledge of students’ cognitive development influence the way you teach? †¢ How does language develop? What is the best way to teach students to communicate verbally? PHYSICAL AND COGNITIVE DEVELOPMENT Exploring How Children Develop Language Development Developmental Why Studying Issues