predicated‚ the element that was found to match that of Case Study B was Barium Chloride. These results supported both the hypothesis and prediction for that was the original chemical thought to be in this case study. Barium Chloride was matched up to this case study for one‚ the flame that was produced from the mystery chemical was the same as that of Barium Chloride. When further research was conducted‚ one can see that Barium Chloride can be lethal when exposed to water as stated on the notes that
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556-60 Muller AD‚ Sonnenberg A Rex DK Colonoscopic withdrawal technique is associated with adenoma miss rates. Gastrointest Endosc. 2000; 51; 33-6 Rex DK et al Relative sensitivity of colonoscopy and barium enema for detection of colorectal cancer in clinical practice Steine S et al Double contrast barium enema versus colonoscopy in the diagnosis of neoplastic disorders: aspects of decision-making in general practice. Fam. Pract. 1993; 10:288-91 Staab HJ‚ Anderer FA‚ Hornburg A‚ et al
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Unit 3 assessment O1 Analysis of fertiliser-an extended experimental investigation Background: In this investigation you will analyse the composition of a lawn fertiliser‚ or ‘lawn food’. You may use external sources to help you complete the this section. Q1. Why is each of the elements Nitrogen‚ Phosphorus‚ sulfur and iron included in lawn food? ______________________________________________________________________________________________________________________________
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this purpose was accomplished‚ because I was able to see examples of synthesis‚ single replacement‚ double replacement‚ and combustion. I concluded that in some double replacement reactions‚ there can be a result of a precipitate‚ for example between Barium nitrate and Sodium hydroxide there was a product of a form of salt. This experiment was probably not very reliable due to the fact‚ the reactions were not done over again and double replacement was not done at the same time as the other reactions
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allergic to any medicines‚ including anesthetics. * Have had bleeding problems or take blood-thinners‚ such as aspirin‚ clopidogrel (Plavix)‚ or warfarin (Coumadin). * Do not eat or drink anything for about 2 hours‚ until you are able to swallow without choking. After that‚ you may resume your normal diet‚ starting with sips of
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in this experiment are potentially harmful‚ so make sure to use goggles and tonsils to hold the test tube. If no eyewear is worn you could risk losing your eyesight. MATERIALS AND METHODS: Eyeware Test Tubes Tonsils Silver nitrate Sodium chloride Barium chloride Sodium sulfate Squeezy thing EXPERIMENTAL PROCEDURE: 1.)Put on your goggles. 2.)grab
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0.2 M Sodium nitrate‚ NaNO3‚ 0.2 M Test Reagents: Silver nitrate‚ AgNO3‚ 0.1 M Ammonia‚ NH3‚ 6 M Nitric acid‚ HNO3‚ 6 M Potassium permanganate‚ KMnO4‚ 0.1 M Mineral oil Sodium hydroxide‚ NaOH‚ 6 M Barium hydroxide‚ Ba(OH)2‚ saturated Barium chloride‚ BaCl2‚ 0.1 M Acetic acid‚ HC2H3O2‚ 6 M Aluminum(s)‚ granules Iron(III) nitrate‚ Fe(NO3)3 0.1 M in nitric acid‚ HNO3‚ 0.6 M To neutralize spills: Baking soda‚ NaHCO3(s) Vinegar‚ HC2H3O2 Equipment
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What is the Identity of this Hydrate? Date Performed: May 30‚ 12 Date Submitted: June 6‚ 2012 Name: 2968 Instructor: Reid A hydrate was given to our group and the identity of the hydrate was unknown. The lab workers were told to determine the identity of the unknown hydrate. The identity of the hydrate could be determined by calculating the hydrate’s percent of water. So the lab workers set out to determine the water percent of the unknown hydrate. The percent of any compound or element
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(678 nm)‚ the barium ion a light green flame (550 nm)‚ the copper ion a green flame flame (593 nm)‚ and the unknown ion with a red flame (690 nm) very similar to that of the lithium
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observing the color flame that is produced. Flame tests are a common confirmation test to identify specific elements. Procedure: I began the lab by preparing a safe work area and the required metallic ions. The ions used in this lab were as follows: Barium Nitrate‚ Calcium Nitrate‚ Cupric Nitrate‚ Lithium Nitrate‚ Potassium Nitrate‚ Sodium Nitrate‚ Strontium Nitrate‚ and an unknown solution. I placed 0.5 mL of sodium nitrate into a well on the 24-well plate‚ recording its location. I placed 0.5 mL
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