Sodium thiosulphate investigation Essay Example for Free

Sodium thiosulphate investigation Essay What is the middle of the atom called? The nucleus. 2 What two types of particle are found here? Protons and neutrons. 3 The electrons are arranged in shells (also called energy levels). How many can be held in the first shell? Two. 4 How many can be held in the second shell? Eight. 5 How many can be held in the third shell? Eight. 6 Where are the non-metals located in the periodic table? In the top right-hand corner. 7 What are the horizontal rows in the periodic table called? Periods. 8 What are the vertical columns called? Groups. 9 What is the name of Group 1? The Alkali Metals. 10 What is the name of Group 7? The Halogens. 11 What is the name of Group 0? The Noble Gases. 12 Elements in the same group have the same number of what? The same number of outer electrons. 13 Do elements in the same group have similar chemical or similar physical properties? Similar chemical properties. 14 Elements in the periodic table are arranged in order of what? Increasing atomic number. 15 Which of these elements has the greatest atomic number? Element B. 16 What is the electron arrangement of element C? 2. 8. 7 17 What is the electron arrangement of element E? 2. 8. 1 18 Which of the elements are very reactive metal and why? Elements D E they are in Group 1 (The alkali metals). 19 Which of the elements is a very unreactive non-metal and why? Element F it is in Group 0 (The noble gases). 20 Name the first four halogens. 1. Fluorine 2. Chlorine 3. Bromine 4. Iodine 21 What happens to the reactivity of the halogens as you go down the group (increasing atomic number)? They become less reactive. 22 What happens to the colour of these elements down the group? They become darker in colour. 23 What happens to the boiling point of these elements down the group? Their boiling points increase. 24 What does fluorine look like? A pale yellow gas. 25 What does chlorine look like? A green gas. 26 Name two uses for chlorine. 1. Killing bacteria in water. 2. Making bleaches. 27 What does bromine look like? A red -brown liquid (which evaporates easily to make an orange-brown gas). 28 What colour is bromine dissolved in water? Orange-brown. 29 What is the name of the compound formed when potassium reacts with bromine? Potassium bromide. 30 What colour is this compound when dissolved in water? Colourless. 31 What does iodine look like? A shiny grey-black solid (which produces a purple gas when gently heated). 32 What colour is iodine dissolved in water? Brown. 33 What is this iodine solution used for? An antiseptic. 34 What is the name of the compound formed when sodium reacts with iodine? Sodium iodide. 35 What colour is this compound when dissolved in water? Colourless. 36 What is the name of compounds of the halogens? Halides. 37 List two observations when sodium reacts with chlorine. 1. The metal burns with a yellow flame. 2. A white solid is produced. 38 What is the name of the product of this reaction? Sodium chloride. 39 What is its chemical formula? NaCl 40 List two observations when iron wool reacts with chlorine. 1. The metal glows red. 2. A brown solid is produced. 41 What is the name (and chemical formula) of the product this time? Iron chloride (FeCl3). 42 What is formed in this reaction: bromine + potassium iodide? potassium bromide + iodine 43 Which of these compounds will NOT react with chlorine: a) sodium fluoride; b) potassium bromide? sodium fluoride (Chlorine is less reactive than fluorine and so cannot displace it from fluorides. ) 44 What is a compound? A substance made by chemically joining two or more elements together. 45 Compounds have similar properties to the elements they are made from. Is this true or false? False they have completely different properties, eg sodium chloride is nothing like either sodium or chlorine. 46 What is the name for the substances on the left of a chemical equation? The reactants (or starting materials). 47 What is the name for the substances on the right? The products. 48 What do the symbols (s), (l) and (g) stand for in chemical equations? Solid, liquid and gas 49 What does the symbol (aq) stand for in chemical equations? Aqueous (which means dissolved in water). 50 What is meant by reaction rate? How fast a reaction goes. 51 List four ways of increasing the rate of a reaction. 1. Increasing the temperature. 2. Increasing the concentration of a reactant. 3. Increasing the surface area of a solid. 4. Adding a catalyst. 52 What is a catalyst? A chemical which speeds up a reaction but which does not get used up. 53 Does the catalyst appear in the chemical equation for the reaction? No (because it does not get used up). 54 What are enzymes? Catalysts produced by living things. 55 Why dont enzymes work if the temperature is too high? They become denatured (damaged) by the heat. 56 What two things about line A show that it represents a faster reaction? 1. It starts more steeply. 2. It levels off sooner. 57 How can you tell that both lines A and B were obtained using the same amounts of the reactants? They both produced the same amount of product in the end. 58 Increasing the temperature makes the particles move around more quickly. Give two reasons why this makes the reaction faster. 1. The collisions occur more often. 2. More of the collisions have enough energy to lead to a reaction Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Patterns of Behaviour section.

Death in T.S. Eliots The Wasteland and Maddys No Past, No Present, No Future :: Death Eliot Maddy Wasteland Future Past Essays

Death in T.S. Eliot's The Wasteland and Maddy's No Past, No Present, No Future Death is an inevitable fact that everyone experiences at some point in their lives. Whether it is losing a friend, family member, someone famous and well known, or finally themselves, everyone knows what it's like to deal with the topic of death. In The Wasteland T. S Eliot is describing death with a very different approach which makes death seem poetic yet very dreary and uninviting. On the other hand, in Yulisa Amadu Maddy's book No Past, No Present, No Future death is not poetic at all but very cold and melancholy. In No Past, No Present, No Future three boys become best friends and later their friendship is torn apart from the inside out until it finally dies. It began when Joe Bengoh came to live with Ade John and Santigie Bombalai after his parents died. That was the first death that Joe experienced. The second death affected both Joe and Ade when a girl Mary died. Mary was a prostitute who Joe lost his virginity to, and then afterwards Ade had sex with her. Mary claimed to be pregnant with Ade's child, and she committed suicide trying to abort the baby. Since Ade came from an elite and prestigious family his parents took him out of school and practically disowned him for disgracing their family name. That changed Ade's life from there on out because he was now alone and he wasn't going to let that mistake ruin all his dreams of becoming powerful and rich and wealthy. Joe was affected also by Mary's death because he held a deep sense of anger towards Ade for even having sex with the girl in front of him and later on down the road Mary's death has some part in tearing Joe and Ade apart. Santigie also experienced death, and that was the death of his father who was the chief of his tribe. That death hurt him deeply because when his father died, he left the position of chief not to Santigie but to his uncle. Also, when his father died, he had to quit school at the Mission and begin working like Ade had, because his mother couldn't afford to keep him in school anymore. When Santigie left the Mission Joe Bengoh was all alone and turned to things that shaped his future. Death in T.S. Eliot's The Wasteland and Maddy's No Past, No Present, No Future :: Death Eliot Maddy Wasteland Future Past Essays Death in T.S. Eliot's The Wasteland and Maddy's No Past, No Present, No Future Death is an inevitable fact that everyone experiences at some point in their lives. Whether it is losing a friend, family member, someone famous and well known, or finally themselves, everyone knows what it's like to deal with the topic of death. In The Wasteland T. S Eliot is describing death with a very different approach which makes death seem poetic yet very dreary and uninviting. On the other hand, in Yulisa Amadu Maddy's book No Past, No Present, No Future death is not poetic at all but very cold and melancholy. In No Past, No Present, No Future three boys become best friends and later their friendship is torn apart from the inside out until it finally dies. It began when Joe Bengoh came to live with Ade John and Santigie Bombalai after his parents died. That was the first death that Joe experienced. The second death affected both Joe and Ade when a girl Mary died. Mary was a prostitute who Joe lost his virginity to, and then afterwards Ade had sex with her. Mary claimed to be pregnant with Ade's child, and she committed suicide trying to abort the baby. Since Ade came from an elite and prestigious family his parents took him out of school and practically disowned him for disgracing their family name. That changed Ade's life from there on out because he was now alone and he wasn't going to let that mistake ruin all his dreams of becoming powerful and rich and wealthy. Joe was affected also by Mary's death because he held a deep sense of anger towards Ade for even having sex with the girl in front of him and later on down the road Mary's death has some part in tearing Joe and Ade apart. Santigie also experienced death, and that was the death of his father who was the chief of his tribe. That death hurt him deeply because when his father died, he left the position of chief not to Santigie but to his uncle. Also, when his father died, he had to quit school at the Mission and begin working like Ade had, because his mother couldn't afford to keep him in school anymore. When Santigie left the Mission Joe Bengoh was all alone and turned to things that shaped his future.

Historical Figurs of Nursing

Historical Figures of Nursing Whenever people mention or think of the history of nursing or nursing education many instantly think of Florence Nightingale or Clara Barton. Granted, Florence deserves credit for the advancements she made in nursing, but nursing goes back further than Florence Nightingale. One nurse, that little is known about is James Derham. James was born into slavery in approximately 1762, in Philadelphia, Pennsylvania. James was known to be owned by three different individuals, all of whom were doctors, one in Philadelphia, a British army surgeon, and a New Orleans physician (Hansen, A. 002). In the 18th century it was common for nursing education to be obtained through an apprenticeship, which is exactly how Derham became a nurse, assisting all three of his masters and learning from them. One of his masters, Dr. Robert Dove of New Orleans, encouraged Derham's interest in medicine. James worked as a nurse and purchased his freedom in 1783 (Wikipedia). After purchas ing his freedom, Dr. Derham opened a medical practice in New Orleans, by age 26 his annual earrings exceeded $3,000. 00 (Cobb, W. 1963). Dr. James Derham is the first African-American to formally practice medicine in the United States, although he never received a medical degree (Nursetini, 2009). Dr. Derham was known to speak English, French and Spanish. Dr. Derham returned to Philadelphia where he specialized in throat diseases and diseases related to climate (Wikipedia). Dr. Benjamin Rush, the father of American medicine, spoke with Dr. Derham and had the following to say â€Å"I have conversed with him upon most of the acute and epidemic diseases of the country where he lives. I expected to have suggested some new medicines to him, but he suggested many more to me. He is very modest and engaging in his manners. He speaks French fluently, and has some knowledge of Spanish† (Bennett, L. 1970). Derham disappeared around 1802, fate unknown (Nursetini). In 1960 New Orleans established the James Derham Middle School (now Junior High School) in his honor (Nursetini). Dr. James Derham demonstrated through his dedication to his profession what individuals can achieve with hard work. He overcame several barriers during his career, such as slavery and lack of a formal education, to become recognized as a professional who contributed to healthcare and the treatment of patients. Another individual who has contributed significantly to the advancement of nursing is Margaret Sanger, birth control pioneer (Wardell, D). Margaret was born in 1879 in Corning, N. Y. , one of eleven children of Irish immigrants. Margaret’s mother had 18 pregnancies, becoming weaker and sicker with each one, dying in her 40’s. Margaret’s goal was to become a doctor and to help individuals like her mother. Unfortunately there wasn’t any money for Margaret to go to medical school, but two of her sisters supported her education finically to become a nurse. Margaret was an OB Nurse working mostly in the East-Side/Lower East Side of New York City where she frequently received calls to help and tend to lower income women following self-induced abortions. The tragic case of Sadie Sachs is a well-known moment in the Sanger â€Å"saga. † As Sanger herself saw it, the Sachs case marked the turning point of her life and the beginning of the U. S. birth control movement (Wardell, D. 1980). Sadie Sachs was a 28 year old woman, mother of three children who called out for help following a self-induced abortion and had blood poisoning. Margaret stayed by Sadie’s bedside for three weeks, nonstop, until the crisis was over and Margaret’s 24/7 care was no longer needed. Margaret was present, when Sadie asked the physician caring for her, how to prevent another pregnancy. The physician told Sadie to have her husband sleep on the roof. Three months later, Margaret was called again to Sadie’s home, for the same reason. Ten minutes after Margaret’s arrival Sadie died. Margaret made her decision: â€Å"It was the dawn of a new day in my life†¦I knew I could not go back merely to keeping people alive†¦Ã¢â‚¬  (Wardell, D. 980). Margaret Sanger dedicated her career to educating women on birth control and contraception prevention. Sanger had significant barriers to overcome, including governmental law, which cited birth control information to be a crime, and lack of physician education on birth control and physician willingness to learn about birth control and their unwillingness to chal lenge the law. Margaret remained dedicated to her commitment and established the first U. S. birth control clinic in 1916 in Brooklyn, N. Y. , which was staffed by Sanger and her sister, both nurses. The clinic was illegal and was raided by the NY city police. Margaret and her sister were arrested, Margaret served her time in prison, and Margaret’s sister served her time in a workhouse. Sanger eventually hired a physician, Dr. Hannah Stone, to staff her clinic and direct the new Clinical Research Bureau. Dr. Stone quickly became respected by her peers for her â€Å"competent care and eloquent statics† (Wardell, D. 1980). Again the clinic was raided, during the raid the police confiscated patient charts and private patient information, and this action finally got the attention, dissatisfaction and support of physicians. A key to Margaret’s continued success with the clinic was her marriage to J. Noah Slee, who was the president of Three-in-One Oil Company. Slee not only supported Sanger finically, but shipped diaphragms from Germany to his Canadian factory and then smuggled the diaphragms into the U. S, in Three-in-One Oil boxes. Margaret published pamphlets and gave lectures on birth control throughout her career while trying to establish her clinic, all to educate women and to help prevent unwanted pregnancies, allowing women to make wise health decisions for them. Margaret Sanger’s clinics remain in existence today, â€Å"Planned Parenthood. † Margaret took a personal experience of what she saw in the care of her patient and dedicated her life’s work to educating patients, helping them to make safe health decisions and safe health practices, not seeking back alley care or help. Margaret was instrumental in developing the practices and availability of services that the majority of women in the U. S. take for granted currently.

Coffee Is The Best Cup Of Coffee Essay - 1619 Words

Lately, coffee has been in all its glory. Being more popular than ever, with pumpkin spice lattes, morning coffee runs, and debates on which shop offers the best cup of coffee. No one ever seems to gain interest in how coffee was discovered, who discovered it, who invented coffee machines, and how those were invented. There is no limit to the history behind all these questions. Coffee has been around for centuries, and has changed history to say the least. The first coffee plants came from the Horn of Africa on the shores of the Red Sea. Originally, coffee beans were not used as a beverage, but eaten. East African tribes would grind the coffee cherries together and mix it with animal fat, and then roll the paste into tiny balls. The mixture gave warriors much-needed energy for battle (A Brief History). The plants that the beans grow on actually resemble tiny Christmas trees. Originally the beans are a red color, and actually have a floral scent. The beans turn their known brown-black color when they are roasted, and the darker the color determines how long they have been roasted. During the 11th century in Ethiopia, goat herder Kaldi noticed his goats became so active, not wanting to sleep at night, all from the consumption of these berries (The History of Coffee). Kaldi then took them to his wife, who said they are heaven-sent, and must be taken to the monks. At the monastery, the abbot chucked them into the fire claiming them as the devils work. The beans started toShow MoreRelatedCoffee Is The Best Cup Of Coffee1403 Words   |  6 PagesLately, coffee has been in all of its glory. Being more popular than ever, with pumpkin spice lattes, morning coffee runs, and debates on which shop offers the best cup of coffee. No one ever seems to be interested in how coffee was discovered, who discovered it, who invented coffee machines, and how those were invented. There is no limit to the history behind all of these questions. Coffee has been around for centuries, and has changed history to say the least. The first coffee plants are saidRead MoreThe Best Daughter And World s Cheapest Cup Of Coffee2183 Words   |  9 Pageswith the world s best daughter and world s cheapest cup of coffee. She didn t usually beat him to the office on Saturday mornings, and truthfully he was a little worried about a trend where his seventeen year old daughter was putting in obscene amounts of overtime, and how many hours they d been spending apart. But that concern increased tenfold when he was met with Eli Navarro, known PCH-er, sitting next to his daughter on their lobby-room couch. Dad, The world s best daughter smiledRead MoreImportance Of Coffee Essay1376 Words   |  6 PagesCoffee: the average American’s boost of energy in the morning. As a typical American student, I find it difficult to get through the day without my cup of jo. I need the caffeine to jump-start my morning. 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As a common coffee drinker, the researcher is very curiousRead MoreThe Revolutionary Coffee Company, And The Variables That Will Shape The Future Of The Company And Industry Essay1527 Words   |  7 Pagesexamination of the revolutionary coffee company, and the variables that will shape the future of the company and industry. The basis of the Keurig case study is the transition for niche product aiming for the mainstream success of everyday use by consumers in their homes, to one of the industry leaders among the coffee industry giants. â€Å"Keuri g had been founded to commercialize an innovative technology that allowed coffee lovers to brew one perfect cup of coffee at a time† (Hitt, Hoskisson, IrelandRead MoreMarketing Plan For Coffee Shop Business Essay1228 Words   |  5 Pages Coffee is one of the most popular world’s most popular beverages. Almost every person loves coffee. 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