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

became law because most of the legislation was focused on “suspicionless” or “random” drug testing, which is at odds with a 2003 Michigan Court of Appeals case. Marchwinski v. Howard ruled that subjecting every welfare applicant in Michigan to a drug test without reason to believe that drugs were being used, was

Drug testing at school should only be voluntary. Drug testing for the whole school is not a privilege for the school to do, yet an Ohio school, Chillicothe High School has proposed that they should drug test all of their students. Drug testing should not be forced upon the students in high school. The American Academy of Pediatrics (AAP) released a policy statement in 2015, saying it opposes randomly drug testing students because there’s not enough evidence to show it’s effective, and because random

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

Besides observation, questionings and feedback, when asked to talk about other assessment tools that teachers use in their classroom, most of the teachers expressed their confusion. Almost all the teachers said that they used quizzes and short tests to check their students. Teacher D, for example, said: I usually assign whole class multiple choice quizzes and have my students raise their hands to indicate their answers. From that, I can immediately see how well my students understand the lesson.

longer vacation will be associated with many benefits such as increased time for social life, health benefits, and education plus financial gains. Students need time to relax and de-stress. With the accumulation of homework, projects, assignments, tests and quizzes, students are constantly working and have no time to relax. This can be overwhelming, but students still put in the effort just to make it through the year because they know they can rest in the summer. Furthermore, this could cause students

Have you ever felt like there was a problem in the world that you wanted to solve but you didn’t think anyone would listen? Teen activists are people who see the need for change and act upon it. Teen activism starts with a passion for a cause and continues with determination despite being faced with obstacles. Anyone can make a difference in the world, and teen activism proves it; they always support and help causes that they think are important. Teen activists can believe in the same cause, but

Why I think Immigration Should Be Allowed Consider the following thought experiment: Moved by the plight of desperate earthquake victims, you volunteer to work as a relief worker in Haiti. After two weeks, you’re ready to go home. Unfortunately, when you arrive at the airport, custom officials tell you that you’re forbidden to enter the United States. You go to the American consulate to demand an explanation. But the official response is simple, “The United States does not have to explain itself

educational settings, tests are usually considered method of assessment. Testing is a powerful means of improving learning and not just assessing it. Students takes test to assess whatever they have learned, tests like SAT, CAT etc. Various type of tests are conducted in order to assess students knowledge. More often the students takes test in class, they will study more and will space their studying throughout the semester rather than concentrating it just before exams. Test has a powerful positive

Sternberg’s lifelong love-hate affair with intelligence testing is certainly an entertaining, if not eye-opening, read. His grappling with test anxiety and subsequent development of a standardised intelligence test before he was even in his teens had me thinking on the use of Intelligence Quotient (IQ) as a predictor of intelligence. Sternberg’s early struggles as an undergraduate before becoming an authority in psychology leaves me to wonder if what I teach my students in class is really preparing

It was our responsibility to check and see when our tests were graded. I flipped through what felt like weeks’ worth of paper. When I found my equilibrium test in the middle of the pile, I immediately looked for the grade in the lower right portion of the paper. The sight of the big red sixty-five on my test dealt a crushing blow. It was far and away the worst grade I ever earned on an exam, and it did not help my feelings to realize that our tests were weighted to give each student at least a thirty

The underlining pro of mandatory drug testing is it will potentially terminate the families who abuse the system. However, the cons of drug testing are that it will create additional cost to test recipients, violate a person’s privacy, and take money from other programs to pay for the tests. This article is very informative because it provides both the pros and the cons of mandatory drug testing of welfare recipients. This article is useful to my paper because it provides facts without bias