Overview of High School Chemistry Topics

Overview of High School Chemistry Topics Are you confused by all the topics in high school chem class? Here is an overview of what is studied in high school chem, with links to essential chem resources and worked chem problems. Introduction to Chemistry To study high school chem, its a good idea to know what chem is.What Is Chem?What Is the Scientific Method? Math Basics Math is used in all the sciences, including high school chem class. To learn chem, you need to understand algebra, geometry, and some trig, as well as be able to work in scientific notation and perform unit conversions.Accuracy and  PrecisionSignificant FiguresScientific NotationPhysical ConstantsMetric Base UnitsDerived Metric UnitsMetric PrefixesHow to Cancel UnitsTemperature ConversionsCalculate Experimental Error Atoms and Molecules Atoms are the basic building blocks of matter. Atoms join together to form compounds and molecules.Atom BasicsAtomic Mass and  Atomic Mass NumberTypes of Chemical BondsIonic and Covalent BondsOxidation NumbersLewis Structures or  Electron Dot ModelsMolecular GeometryWhat Is a Mole?More About Molecules and  MolesLaw of Multiple Proportions Stoichiometry Stoichiometry describes the proportions between atoms in molecules and reactants/products in chemical reactions. You can use this information to balance chemical equations.Types of Chemical ReactionsBalance EquationsBalance Redox ReactionsGram to Mole ConversionsLimiting Reactant  and Theoretical YieldMole Relations in Balanced EquationsMass Relations in Balanced Equations States of Matter The states of matter are defined by the structure of matter as well as whether it has a fixed shape and volume. Learn about the different states and how matter transforms itself from one state to another.States of MatterPhase Diagrams Chemical Reactions There are several types of chemical reactions that can occur.Reactions in WaterTypes of Inorganic Chemical Reactions Periodic Trends The properties of the elements exhibit trends based on the structure of their electrons. The trends or periodicity can be used to make predictions about elements.Periodic Properties and  TrendsElement Groups Solutions Its important to understand how mixtures behave.Solutions, Suspensions, Colloids, DispersionsCalculating Concentration Gases Gases exhibit special properties.Ideal GasesIdeal Gas Law ProblemsBoyles LawCharles LawDaltons Law of Partial Pressures Acids and Bases Acids and bases are concerned with the actions of hydrogen ions or protons in aqueous solutions.Acid and  Base DefinitionsCommon Acids and BasesStrength of Acids and  BasesCalculating pHBuffersSalt FormationHenderson-Hasselbalch EquationTitration BasicsTitration Curves Thermochemistry and  Physical Chem Learn about the relationships between matter and energy.Laws of ThermochemistryStandard State ConditionsCalorimetry, Heat Flow, and EnthalphyBond Energy and  Enthalpy ChangeEndothermic and  Exothermic ReactionsWhat Is Absolute Zero? Kinetics Matter is always in motion.  Learn about the motion of atoms and molecules, or kinetics.Factors That Affect Reaction RateChemical Reaction Order Atomic and  Electronic Structure Much of the chem that you learn is associated with electronic structure, since electrons can move around much more easily than protons or neutrons.Valences of the ElementsAufbau Principle and Electronic StructureElectron Configuration of the ElementsQuantum Numbers and  Electron OrbitalsHow Magnets Work Nuclear Chem Nuclear chemistry is concerned with the behavior of protons and neutrons in the atomic nucleus.Radiation  and  RadioactivityIsotopes and  Nuclear SymbolsRate of Radioactive DecayAtomic Mass and Atomic AbundanceCarbon-14 Dating Chem Practice Problems Index of Worked Chem ProblemsPrintable Chem Worksheets Chem Quizzes How to Take a Chem TestAtom Basics QuizAtomic Structure QuizAcids and  Bases QuizChemical Bonds QuizChanges in State QuizCompound Naming QuizElement Number QuizElement Picture QuizUnits of Measurement Quiz General Chem Tools Periodic Table.  Use the periodic table to make predictions about element properties. Click on any element symbol to get facts about the element.Chem Glossary.  Look up the definitions of unfamiliar chem terms.Chemical Structures.  Find the structures for molecules, compounds, and functional groups.

Murder Mystery Comedy Plays

Murder Mystery Comedy Plays Audiences love a good gasp induced by a shocking murder mystery. They also cant get enough of laughter induced by wacky characters and slapstick hijinks. Combine both worlds and youve got a popular genre known as the murder mystery comedy. Of course, just because you have all of those ingredients doesnt mean the play will actually be suspenseful, mysterious, or even funny. When youve got a bunch of dead bodies on stage, the comedy is going to get quite dark, so it takes a special sort of playwright to properly entwine the macabre with the moronic. Here are a few murder mystery comedies that get it right! The Musical Comedy Murders of 1940 Written by John Bishop, this farcical whodunnit does not take a Sherlock Holmes to reveal the villains. But it does create enough mayhem to leave you guessing about what will happen next. A snowstorm encroaches upon the estate of a wealthy philanthropist, a patron of the arts who has called together a famous songwriting team, an iconic director, a Broadway producer, and a pair of theater wannabes. They think that they are pitching the next musical extravaganza  when, in fact, they have been summoned in order to discover the Stagedoor Slasher, a madman (or madwoman) who killed three chorus girl dancers and just might kill again. Throw in some Nazi spies, cross-dressing psychopaths, and a bumbling police detective, and you have a murder-mystery-comedy with a vintage flair. The Musical Comedy Murders of 1940 is available at Dramatists Play Service. (And for those of you actors who cannot sing and/or dance, dont worry. Theres hardly any music and no choreography except for some hysterical fight sequences). The Bold, the Young, and the Murdered There must be something intrinsically amusing about actors dealing with creepy killers because its a popular theme found in comedic murder mysteries, including this one by Don Zolodis. Heres the brief synopsis provided by the publishers at Playscripts: The long-running soap opera The Bold and the Young is in its last days: its hunky hero has self-esteem issues, its villainous old man is more interested in soup, and its heroines are slightly psychopathic. The executive producer gives the squabbling cast an ultimatum: Complete one episode overnight or the show dies. But when the director ends up murdered, and other cast members start dropping like flies, it seems like his threat might actually come true. Can these misfits discover the murderer before the show is literally killed off? The script lends itself nicely to high school drama students and professional actors alike. Theres something liberating about letting go and pouring on that soap opera cheesiness. Mandate for Murder Pat Cook is the master of melodramatic comedies  and has the ability to crank out silly characters so fast, his computer keyboard must be smoking when hes done. (Tim Kelley woulds be proud!) Most Cook comedies are as funny as the playwright is prolific. Mandate for Murder, brought to you by Eldridge Plays, is no exception. And its a blast for community theaters to perform, especially around election time. When a political aide is stabbed to death and the murder weapon is a knife pulled from a birthday cake, the crime-solving characters have a lot of questions to ask. However, they arent the only ones. The audience gets to interrogate the suspects too, not only that- by the end of the evening, they get to vote in the election! The Murder Room This comedic gem by Jack Sharkey brings back a ton of high school memories. We spent just as much time working on the set, with all of its trap doors and secret entrances, as we did working on the lines. Like other zany mysteries, this one features a wide variety of characters (nearly all of them should be played with English accents). With all of its mix-ups and botched assassinations, by the end of the play the audience isnt sure if anyone has actually been killed off. It also pays homage to Sleuth in that characters who supposedly left the storyline come back into the play wearing a clever disguise. The 39 Steps Imaginatively adapted from a Hitchcock classic, the comic masterpiece The 39 Steps transcends the genre. Audiences rave about the non-stop comedy, the amazingly creative blocking, and the four versatile actors who play over one hundred characters. Directed by Maria Aitken and adapted for the stage by Peter Barlow, this farcical tribute to Hitchcock thrillers has been delighting audiences since 2005.

The Way It Should Be Essay Example | Topics and Well Written Essays - 1250 words

The Way It Should Be - Essay Example The author uses different strategies to appeal to the sensibilities of the reader to levels that might not have been reached had the story been rendered in a casual and plain format. The choice of language, use of figures of speech, questions and anecdotes have been used effectively to add strength to the theme of the enduring human spirit, which runs through the short story. The author uses facts and figures to provide authenticity to his claims. For instance, the author situates the story within a specific time frame of the financial crisis in order to create the element of contrast between the bad things and the positive happenings. Mallory’s positive actions are contrasted sharply with the difficult conditions caused by the economic crisis. In some sense, the author sets up the bad times as some kind of reflection against which, Mallory’s graceful qualities are to be seen. The matching of opposites is one of the most effective rhetoric strategies that help bring out the central themes of a story. In this story, the author mixes logical facts and convincing tactics in a manner that captures the different tastes of the readers. There is a remarkable mixture of sense and sensationalism. The use of logical claims to support the rhetoric aspects of the story is evidenced by the various factual analyses, which contribute to the central theme. For instance, in illustrating Mallory’s love for the game the author gives factual information about the level of attachment that the sports girl had for base ball; â€Å"Mallory had a softball scholarship offer from Canisius, a Division I college in upstate New York, bust she chose Central Washington so she could play for Gary Frederick and so her parents could see her play,† (Lake 8). The value of these factual details of Mallory’s attachment to the sport must be seen in light of the eventual sacrifice she later makes for an opponent. The merits of the facts are that Mallory lays aside he r own ambitions in favour of engaging in an activity that whose value is to uplift a competitor whose performance has been rendered hopeless through an accident. Logically, her actions might seem irrational and absurd particularly within the context of the sporting competition. However, the author intends to make the case of her unyielding spirit of humanity even more pronounced. The plot of the story is circular. In some sense the end of the story appears to be at the middle. The author expertly breaks up the story in bits and pieces so that it can only be understood when read in totality. The story line keeps going back and forth. For instance, the description of the game in which Mallory’s spirit of humanity became manifest is largely brought out in bits and pieces. The reader does not learn of how the main game ended until the very end of the story. However, Mallory’s heroism is celebrated much earlier even before the story provides details of about the conclusion of the main game. Through the use of circular plot, the author manages to bring into perspective different aspects of Mallory’s life in terms of how they logically connect with the main episode. Her relations with her family, the peculiar kind of upbringing and her childhood influences are brought in bits and pieces and in a way that interrupts the main story about the game, where her heroism became most

Extension on lead acid accumulators or lithium rechargeable batteries Coursework

Extension on lead acid accumulators or lithium rechargeable batteries - Coursework Example Introduction Rechargeable batteries such as lead acid accumulators and lithium accumulators are applied in number of operations. For example, lead acid accumulators are mainly used to start engines such those of cars and motorcycles among others. They are also used to store solar energy in situations where solar panels are used as sources of energy. Regardless of the fact that they are widely used in the above mentioned operations, none of these lead acid accumulators has been incorporated with instruments (pre-installed meters) such as ammeters and voltmeters that show amount of power (amount of available current or voltage respectively) that is available (Benson 2006). This has forced users of these devices use external voltmeters or ammeters to measure amount of voltage or current that is available respectively. Also, during charging operations these accumulators are not able to show whether they are fully charged or not; this may lead to overcharging and consequently reduction in life of the accumulators (Benson 2006). It is, therefore, important that these accumulators be fitted with pre-installed meters (ammeters and voltmeters). ... This will be possible since the proposed product will be fitted with a screen or analogue indicator that is capable of showing amount of charge available in an accumulator and the level of charge while the accumulators are undergoing charging operations. This paper, therefore, has proposed extension on Rechargeable batteries such as lead acid accumulators and lithium accumulators. The extension is such that the newly produced lead acid accumulators and/or lithium accumulators are fitted with instruments capable of measuring levels of both available current and voltage. These instruments maybe ammeters or voltmeters (they may also be either digital or analogue provided the required information is displayed effectively). The proposed extension is expected to enable users know whether their accumulators are charging or not or whether they are full while being charged on or not. Analysis of the market Whenever any new product is to be released into the market for the customers, an extens ive and detailed market research should be carried out. It is normally carried out in order to make informed decisions regarding what the customers want, and how they would view the proposed modification (Cole& Kelly 2011). If a product is released into the market without necessarily carrying out proper market research, problems that would have been avoided may affect the market as well as sale of the product; thereby impacting negatively on the producers of the product (Anderson 2007). Therefore, carrying out market research is imperative when a new product or a modified product is to be released into the market. The data that may be collected during market analysis include: how the customers would perceive the modified product, the current market size of the current

Fredrick Douglass :: essays papers

Fredrick Douglass Fredrick Douglass vs. Gone with the Wind. That’s how I perceived the two pieces of literature, Douglass is writing a true account of what his experience has been in slavery while Gone with the Wind is a fictional production of southern life. Pardon the simile but they are like black and white. Douglass gives a graphic portrayal of his own beatings and being forced to work. The guy didn’t even know when his birthday was, at first I was like big deal, but after I thought about it and that would suck not knowing when you were brought into the world. Not knowing your Mother real well would seriously bite but I loved how in the night she would walk the twelve miles to the plantation just to put her boy to sleep. Very touching. It’s odd for me to think of my Mom dying and not being that sad. Douglass said it was like hearing about a stranger dying. Gone with the Wind was however a completely different story. I look at Scarlet and I’m thinking, â€Å"man what a fox† how could anything bother her? Does she even have a clue as to how terrible slavery really is? She has everything, the house, the clothes, and the influence, everything except for the man of her dreams but hey she eventually gets a piece at the end of the show. I can see why this movie has been around for like fifty years, it’s because it’s what’s people want to believe, what flatters us. I’m guilty of this, I would much rather watch a pretty decent movie about the â€Å"southern dream†: ladies, money and debutantes opposed to almost feeling the sting on my back as I soak up Douglass’s narrative on slavery, sickness and tribulations. Douglass repeats a couple times that literacy is the seat of freedom, I don’t know about that. Sure, you are free to read when possible and write when allowed but that doesn’t deliver you from the bonds of slavery, who cares if you are educated? To a slave owner you are one step closer to an uprising and this in turn makes him punish you even more brutally. I don’t believe its freedom to read. If I was a slave I would be so depressed I think I’d give up and let myself die, I mean it can only get better from here right?

Medical Records Security Paper

In my paper, I am going to explain technology threats that an organization might face with having medical records put on a database. I am also going to explain the information that will be protected in medical records on the database. I will also go over all the latest security measures available to help keep these databases threat free so the medical records will be safe on the computer. I will also explain what I would do to help keep my organizations medical records secure.When an organization has a staff ratio of one person to 100 people that can lead the organization to big trouble as far as following rules and procedures that need to be followed as far as following important rules like patient privacy and security. Having a staff ratio that small can lead to short cuts by staff to get things done faster and that can lead to mess ups like pulling up someone else’s medical record or giving someone the wrong prescription. That is why it is so important to make sure the staf f to patient ratio is adequate to meet all the needs of the organization.If the staff to patient ratio is adequate staff will slow down and do things right because if they do not they will be in a lot of trouble. There are a number of threats that effect organizations that maintain electronic medical records [ (Jeanty, 2010) ]. These threats come from both internal and external sources and from both those with malicious and maligned intent. The potential exists that individuals with malicious intent have the potential to attempt to access the records, and there exists the potential for records to be accessed/changed unintentionally.There are a number of different threats that can happen on a database an example would be a virus or a bug. Organizations need to be careful about these sorts of things and get software for their computers to keep their databases free of these parasites. Especially if they have people’s medical records on their computers. The major concern with med ical records in the electronic realm is the protection of a patient's privacy and confidentiality [ (U. S. Department of Health and Human Services) ]. The privacy of documents on digital format is always vulnerable to threat.Luckily, today's electronic medical record programs come with built in security measures such as passwords, firewalls and various other security functions. What is especially important in the arena of medical records is the integrity of the respective medical record. Errors in a medical record could be fatal. The likelihood of errors could also increase when many people have the ability to enter data into a record. Therefore, who has access and the control of access to the medical records is imperative. That is why only doctors should have access to their patient’s records because they are the ones treating them.That way only one person will have access to medical records and not a whole bunch of people. That will help minimize errors on medical records. In regards to information  maintained in medical records that needs to be protected, the utmost importance is the patient's personal information to include their SSN, and other personal information. However, the patient medical information is important to protect as well. In a large sense, it is important to protect the confidentiality of the patient medical history, but more importantly, it is important to protect the integrity of the data.In order to keep my organizations medical records secure I would have the necessary software to keep my database running smooth. I would also have security measures put in place on the database as passwords put on in order to access patient records. I would also only have doctor’s access medical records because they are the ones that treat the patients and they are the ones that should have access to them not everyone else. That will help minimize all problems associated with medical record privacy. Conclusion Protecting a patientâ€℠¢s medical records is the most important thing that n organization must do for the patient. Patients medical records represent who they are, organizations must understand that, and live up to all the Hipaa rules that are put in place to protect people from patient invasion of privacy. Think about it how would you like it if people were invading your privacy by looking at your medical records when you did not want them to.References Jeanty, J. (2010, August 10). HIPAA Rules That Affect Technology. Retrieved from www. ehow. com. U. S. Department of Health and Human Services. (n. d. ). Regulations. Retrieved from www. hhs. gov.

The Importance Of Aerobic Life On Earth Essay - 1883 Words

Introduction: Aerobic life on earth is only possible thanks to the oxygen produced by the cellular respiration of plants and other photosynthetic organisms. This crucial service was recently demonstrated in a 2012 study by Martin et al. titled A paradigm of fragile Earth in Priestley’s bell jar. The experiment was based off of Priestley’s now famous bell jar experiment where Priestley first placed a mouse in a sealed jar without plant life, leading to the mouse’s eventual asphyxiation, and placed another mouse in a sealed jar this time with the addition of mint sprigs. This second mouse survived unscathed and in an effort to replicate this experiment on a large scale Martin et al.’s study focused on keeping a healthy 47-year old man in a small, well-lit, and sealed greenhouse filled with a variety of plants for 48 hours. Their experiment was a success and the oxygen content in the greenhouse actually rose from a deliberately reduced initial concentration of 12.4 % O2 to an 18.1 % concentration more representative of our atmosphere. In our study we sought to compare the oxygen output of three different types of photosynthetic organisms, a strain of pea plant, a lichen, and an Elodea sp. to find which species yielded the most oxygen per gram of mass. We hope that the information acquired in our study can be used in a similar way to Martin et al.’s study and hope it will be of especial service those seeking to transport or keep aerobic organisms in confined spaces,Show MoreRelatedIb 150 Exam 11240 Words   |  5 Pages1. Understand what is the same about all life, and what makes life diverse A. List the five characteristics all organisms on Earth share * The five characteristics all organisms share is: information, replication, evolution, cells, and energy (cerie) B. Explain why the first four are required for life * Cells allow things to go in and out of the organism (allows diffusion to happen so good things go in and bad things go out) * Energy is required because itRead More The Health Benefits of Exercise Essay1659 Words   |  7 PagesExercise is one of the most important factors in a persons’ life. Physical activity, or the lack of it, can result in a person having a healthy life or cause them to have diabetes. The benefits of exercise are countless. The positive health results, the improvement in attitude, even better academic performance are all factors which make not exercising inexcusable. Merely not using a person’s body is harmful. Not being active results in a person’s muscles becoming weak and out of condition. TheRead MoreThe Effect of Photosynthesis and Respiration on the Environment1239 Words   |  5 Pagesof paramount importance. Photosynthesis is the process by which green plants synthesize organic compounds, primarily sugars, from carbon dioxide, and water using sunlight and chlorophyll. 6 CO2 + 6 H2O C6H12O6 + 6 O2 Respiration is the process by which plants and animals metabolically break down organic compounds, mainly carbohydrates to release energy for use such as in the bodily processes, such as active transport. It can be either aerobic or anaerobicRead MoreEnvironmental Issues Of Global Reuse And Recycling Of Personal Electronic Devices1708 Words   |  7 Pagescontaminate our personal and limited soil and water. Earth in Equilibrium: The carbon cycle is an environmental cycle that has helped people live on planet earth. Carbon which is a part of the four elements (wind, water, fire and earth) attaches with oxygen in a gas called carbon dioxide. This carbon dioxide is called a greenhouse gas as it traps the heat necessary for life on the atmosphere. With ought this important greenhouse gas, the earth would be a frozen world that most species includingRead MorePersonal Environmental Statement and Action Plan1569 Words   |  7 Pages My Personal Environmental Statement and Action Plan The dynamic relationship between humans, Earth and all else within has always captivated me. I was born in 1973 in Jamaica, my parents were politically active, I was taken as a child to rallies mostly about challenging socio-political injustices and poverty, in the streets of London, Kingston and New York and can recall the first time hearing such terminology as, ‘limits to growth’, ‘the pollution pandemic’, ‘alternative energy’, ‘consumerismRead MoreHumans And The Human Life Essay1623 Words   |  7 Pages Although they can’t be seen to the naked eye, it is vital that we comprehend the important role microorganisms play in our everyday life. These organisms’ importance goes as far back as causing the start of evolution on the planet Earth, which in turn led to the wide variety of species that we can find in different parts of the world nowadays and even to the existence of us. Having in depth knowledge of microbiology exte nds beyond the past, and into the influence it can have on our future. The ubiquitousRead MoreLong Term Effects Of Waste Management1281 Words   |  6 PagesLong term effect of waste management To prevent damaging the Earth’s ecosystems and maintain a high quality of life for the planet’s inhabitants, we must manage our waste safely. However, the disposals are still having lasting effects on our environment. There is a need for employing new technology to improve the waste management and achieve compatibility in the cost of treatment processes and the maximum effect on controlling the pollution caused by waste. The combination process to treat leachateRead MoreTheme I History Of Microbiology1710 Words   |  7 Pagesthe same century, Spallanzani reverses the theory of spontaneous generation. Needham does the same thing, leading to boiling infusion. The microorganisms appeared not sealed and microscopically. In 1775, Lavoisier discovered the O2 and its importance to life. Proponents of spontaneous generation took advantage of this. They said that if the flask was closed not allow the passage of O2, without o2 can not live. Louis Pasteur (1822-1895) was one of the fathers of the Microgiologà ­a. He showed thatRead MoreImportance of Oceans4849 Words   |  20 Pagesremoving carbon from the atmosphere and providing oxygen. It regulates Earths climate. The ocean is an increasingly important source of biomedical organisms with enormous potential for fighting disease. These are just a few examples of the importance of the ocean to life on land. Explore them in greater detail to understand why we must keep the ocean healthy for future generations. Fishing Facts The oceans have been fished for thousands of years and are an integral part of human society. FishRead MoreThe Formation And Evolution Of The Earth Essay2255 Words   |  10 PagesTHE FORMATION AND EVOLUTION OF THE EARTH The world s evolution is long and complicated process who’s understanding to the human sphere is in its infancy. Many studies have been carried out in natural science with the aim of making sense of the earth the significant occurrence of its formation. It is widely assumed that planet earth is a third of the age of the universe. The evolutionary changes that allowed it to be able to support life is a combination of both geographical and biological nature