it and pour it into the container. 4. Add about 2 tablespoons of liquid detergent and mix 5. Let the mixture sit for about 5-10 min 6. Add just a dash of your meat tenderizer Mix it and wait for 5 minutes and add rubbing alcohol 7. DNA should appear 8. Extract the DNA Observations: -During the lab I saw that when the alcohol was poured in to the spinach mixture they were separated the alcohol was at the top the spinach was at the bottom. -Also the DNA slowly formed and
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The United States is made up of many organizations and agencies that keep the country productive and citizens of this great nation healthy. Sixteen different sectors have been identified as critical to the continued prosperity of America. A critical infrastructure is described as ******** . One of the sixteen critical infrastructures that is vitally important to the nation is the chemical sector. The chemical sector is a broad infrastructure that is responsible for many forms of chemicals that the
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had cooked into the plate of rice. When she was doing that‚ she will routinely add in any accompanied sauces of the dish into my plate of rice. And the end of state of my dinner will be a plate of rice in a mixture of sauce with the different dishes. She will often mixed up the plate of mixture before passing it to me for my dinner. Even though all the different dishes were cook brilliantly and tasty‚ after the “mixing” done by my grandmother‚ the dinner became disastrous. Because of this‚ I dislike
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to identify the culprit of the crime? The trail of glitter and the strands of hair acted as the evidence to see who the culprit was. 3.Who stole the hair products? How do you know? Jade stole the hair products. We used her hair follicle and a mixture of tools that we were able to use to magnify the hair and see if damage was done or any chemicals detected. We also used the tools to see if the DNA from each piece of hair matched the strand of the culprit’s strand. N-Squad Your second lab link
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Materials and Methods The laboratory procedures were conducted based on the steps provided in ‘An Introduction to Chemical Systems in the Laboratory’1. Specifically‚ 1.90 grams of KCL was weighed in a 250ml beaker and dissolved in 25 ml of deionized water. This solution was then quantitatively transferred to a 250ml volumetric flask. Proper technique is needed for quantitative analysis. This transfer was done to ensure that there was no detectable KCl left in the beaker. After transferring the
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the time prescribed. The next element is “going from your appointed place of duty”. This is simply arriving at your place of duty and then leaving without authorization. The third element‚ “absence from unit‚ organization‚ or place of duty”‚ is a mixture of elements one and two. Although I have not found any information on the minimum punishments‚ I do have a list of the maximum punishments. (1) Failing to go to‚ or going from‚ the appointed place of duty. Confinement for 1 month and forfeiture
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07X1VW5 I‚ 2013 SUMMATIVE ASSESSMENT – I‚ 2013 / SCIENCE IX / Class – IX 3 90 Time Allowed : 3 hours Maximum Marks : 90 General Instructions : The question paper comprises of two Sections‚ A and B. You are to attempt both the sections. All questions are compulsory. All questions of Section-A and all questions of Section-B are to be attempted separately. 1 3 Question numbers 1 to 3 in Section-A are one mark questions. These are to be answered in one word or in one sentence. 4 6 30-30 Question
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for the abbreviation for the name of a chemical compound that indicates the number of atoms of each element? c. chemical formula What is the term for matter having an indefinite composition and variable properties? c. heterogeneous mixture Which of the following laws states that a compound always contains the same elements in the same proportion by mass? d. law of definite composition Which of the following describes a substance in the liquid physical state? a.
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Introduction When humans are exposed to chemicals‚ they are not exposed to just one chemical at a time. A vast number of chemicals penetrate our environment. Exposure‚ whether simultaneous or sequential‚ are to chemical mixtures. The standard definition of a chemical mixture is any set of multiple chemicals regardless of source that may or may not be identifiable that may contribute to joint toxicity in a target population. 2.0 Organisation And The Chemicals Use An assessment of chemical
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acknowledgement I have taken efforts in this project. However‚ it would not have been possible without the kind support and help of many individuals and organizations. I would like to extend my sincere thanks to all of them. I am highly indebted to Dr.O.P Bussie for their guidance and constant supervision as well as for providing necessary information regarding the project & also for their support in completing the project. I would like to express my gratitude towards my parents & member
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