Chemical tests Essays

Analysis of Unknown Samples Through Staining and Chemical Testing (Unknown 8) Abstract: Identifying bacteria by culture is possible due to various tests ranging from staining techniques to biochemical testing. Bacteria have a wide range of variances. To help identify unknown bacteria, gram staining, selective and differential media, analytical profile index (API), and BLAST tests were performed. It resulted in gram negative, rod shaped, lactose fermenting bacteria. The most likely bacterium it could

E. Discussion: In order to synthesize the polymer, Nylon 6,10, we had to complete a few steps to create the chemical reaction that combined sebacoyl chloride and hexamethylenediamine. First we measured the mass of the two graduated cylinders when they were empty, and measured it again after they were filled with sebacoyl chloride and hexamethylenediamine. We did this in order to find the measurements of the reactants. When we measured the graduated cylinder when they were emptied, one weighed at

and ACTS have been used for numerous years as a way to gauge a student’s academic success while in college. Students have the choice which test they would prefer to take and most colleges do not prefer one test over the other. There are a few key differences between the SAT and ACT, which may make one test more suitable than the other for those taking the tests. Many studies have proven that the SAT and ACT are not the best judge of future success, and that colleges should focus their applications

scratch; the room is filled with the sound of pencils filling in blank bubbles on test sheets. Students silently sit in row upon row of tattered, old desks mindlessly completing the task assigned to them. Their public school depending on those standardized tests to receive little if any funding. Meanwhile, down the road a charter school with an abundance of students and supplies has plenty of funding yet is not riding on the test scores of its enrolled children to have money. Despite all of this, the scores

it is, and to others, not so much. There are several types of cheating: on tests, people, and even in sports. It 's shocking that others do these things, and it isn 't beneficial in any way. Cheating is not something that 's acceptable. If you have a conscience then you most likely will not cheat, no matter what the situation is because you may feel guilt. Say you 're in class one day and everyone has to take a test, and the person that sits right next to you forgot to study. They 're automatically

Lakes colony, is sent to the testing. The testing is a series of exams, ranging from pen and paper to a full on Hunger Games style trek. Cia and several individuals from other colonies are sent to compete. She passes the first few tests relatively easily, but in the fourth test she is sent to complete a several hundred mile long journey in abandoned North America. In doing so, she created several alliances, including her relationship with Tomas. This relationship represents one of the most prominent themes

Athletes can be tested 365 days a year without advance notice (U.S. anti-doping agency, p. 1). For many years, drug testing on athletes has been a source of contention.People debate whether athletes should not be drug tested or if they should be. Although many people believe that drug testing on athletes should not happen because it violates the Fourth Amendment, athletes should be drug tested to protect their health, to stop athletes from using drugs, and to make competition fair. Athletes are

athlete without having evidence. Another example of why drug testing doesn't work is because ¨A drug test is not likely to catch most drug users¨. While many athletes are caught, many others are still participating in sports. People believe that drug testing violates the 4 amendment because you are violating the athletes rights but is not because athletes are to voluntarily agree to take a drug test to be able to participate in any sport or competition. It's true that drug testing may not catch all

Drug Testing in Public Schools Drug testing in public schools has been a controversial topic for many years. While some people believe it is necessary to ensure the safety of students, others argue that it violates their privacy. In my opinion I would argue for Drug Testing in Schools because it’s a different but a much better way of figuring out who is smoking in school. Students have the right to come to school without having to be involved with drugs. According to “On the demand occupational

history of the world, there are many many failure who had lead to success in a way, that we can’t belive. A scientist einstein is a big example for us to learn how failure achieve to success. Looking at our daily, we daily fail in our achievement test, but usually a times come when we spark a success. And I had many experiences in my life like that. I am also getting know through my daily life experience also how failure can eventually lead to success. “Defeat is not the worst of failures. Not

the reader to track the hero’s journey and growth through the story. Campbell divides the Heroes Journey into three different phases; Departure, Initiation, and Return. Each phase has certain stages where the hero is faced with unique challenges that test him or her. The 1989 movie Indiana Jones and the Last Crusade, written by George Lucas and directed by Steven Spielberg, meets all the criteria outline by Campbell in the “Hero’s Journey” model;

A rating scale was developed by using the learning outcomes as the criteria for judging student performance on a numerical scale. Gronlund (1973) argued that some objectives required higher levels of achievement to master than others. This was reflected in the descriptors of the particular skill to be evaluated. The numerical scale 4, 3, 2, and 1, reflected excellent, good, fair, and poor respectively. In development of this rubric, assessment was scored out of 12, diagnosis and planning were

A meeting is: ‘An assembly of people for a particular purpose, especially for formal discussion’ Meetings are an effective way that staff can share and exchange information, get feedback, plan, collaborate and make important decisions. Within our school we have many different types of meetings which include ad hoc meetings, governing body meetings, management meetings, one-on-one meetings, staff meetings, team meetings and parent meetings. At staff meetings matters for discussion will include

In the dystopian science fiction book Divergent, Veronica Roth shows how you should be able to stay true to yourself and what you believe no matter what is going on. This theme is important to people, especially younger people, because it says you can be unique, and you shouldn’t have to worry about it. In the book, Beatrice, the main character and Abnegation-born, has to choose what faction to live in and by the rules of in the future city of Chicago. She can either give in to changing to fit in

The book Divergent is set in a futuristic world with new technologies and fascinating scenery. The author has an ability to capture everything in sight, to give you elaborate details of what going on around each scene of the book. The dialogue in this book gives you a feeling of being a character in the book itself. There are many unexpected twist and turns in this book and it definitely keeps you on the edge of your seat. The characters in this book all seem to have unique backgrounds and it exciting

determines whether the test measures what it claims to measure. There are a few forms of assessment validity they include criterion-related validity, content validity, and construct validity. Validity is important because assessments should be measuring something that is important. As teachers we have a little amount of time with students, validity of the test will determine if the test is worth giving to the students. A bad example of this is testing a student with ap The validity of a test is so important

Brittney Ingraham BADM 520 Quiz #4 October 24th 2015 1) What are the main criteria for evaluating measure validity? There are 5 different types of validity that are used for evaluating measure. The first criterion is making sure the measure has face validity. Face validity of the measure means that it accurately describes the concept being studied. An easy way to think about this if you make a bakery, you want people to walk in and know it’s a bakery; you cannot sell cars at your bakery and expect

Hi Everyone, In 2017 Comparative testing in Australian schools is now called NAPLAN. NAPLAN is an annual program for all students in Years 3, 5, 7 and 9. Since 2008 the program was intended to be a diagnostic tool to measure three things: first, how each student is achieving; second, to examine national literacy and numeracy benchmarks are being achieved at each school; and third, how educational programs are working in Australia schools. This has certainly changed, now students are played off against

She did not find her capable of being Abnegate like her family also not forgetting that her test results indicate that she is divergent meaning she does not really fit in any faction but that is a secret she must keep with her. For Beatrice to join Dauntless she does have to do somethings it is not that easy for her to get in. Everyone needs

We have all met someone who has some weird name. It might be hard to pronounce or spelled weirdly. We can feel bad for the child because of their name being mispronounced by teachers or just regular people. Other children might pick on this kid just because they have a weird name. Children are very much affected mentally at their young ages. This is at the time of their personalities developing. Around a week or two ago Kylie Jenner released the name of her first child. Kylie and boyfriend, Travis