Chapters 4 and 5 Practice Test 1. Which of these compounds is a weak electrolyte? A. HCl B. CH3COOH (acetic acid) C. C6H12O6 (glucose) D. O2 E. NaCl 2. The balanced net ionic equation between aqueous diethyl ammonium chloride and aqueous potassium hydroxide contains which of the following species? A. KCl(s) B. 2 OH-1 C. (CH3CH2)2NH2 (aq) D. H3O+1 E. (CH3CH2)2NH2+1 (aq) 3. In the chemical reaction 5H2O2 + 2MnO4- + 6H+ ( 2Mn2+ + 8H2O +
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INTRODUCTION There are many reasons for knowing the identity of microorganisms. The reasons range from the knowing the causative agent of a disease to knowing the correct microorganism in order to make antibiotics. This study was done by applying the following methods; OF Glucose‚ Indole Production‚ and Malonate Utilization test for the identification of an unknown bacterium. The methods will assist in determining the unknown bacterium found in a 55 year old male that was passing blood and mucous
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the fertilizer is indicated by these three numbers‚ but the tradition of using the oxide form of P and K can be a bit confusing and is set in fertilizer law. From the percent N value on the label‚ it is not obvious if the N is present as nitrate‚ ammonium‚ or urea. Similarly‚ the P in most commercial fertilizers is chemically present as phosphate (PO4)‚ but this number is mathematically converted to P2O5 equivalents for display on the fertilizer label. Potassium fertilizers are never present
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Biogas Anaerobic Digester Considerations for Swine Farms in North Carolina Collecting biogas from anaerobic digestion of swine manure can benefit the environment by reducing methane emissions (has potential value for equivalent carbon credits or greenhouse gas (GHG) credits)‚ and by providing energy‚ as biogas is about 60 to 70 percent methane. Methane has an energy value of about 1‚000 BTU/SCF1‚ so biogas can have an energy value of about 600 BTU/SCF. Plug-flow or complete-mix anaerobic digesters
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Decena‚ Janine Maris Del monte‚ Joan Carla ILLEGAL FISHING The Philippines ranked 11th among the top fish producing countries in 2003 with the production of 2.63 million tonnes of fish‚ crustaceans‚ molluscs and aqua plants. As an archipelagic state with over 2.2 million km of highly productive seas‚ the Philippines has vast fishery resources‚ and the most biodiverse marine area in the world. However all the country ’s main fish species and marine organisms are showing signs of overfishing. Illegal
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Nichols where he parked a getaway vehicle several blocks away from the Alfred P. Murrah Federal Building. After removing the license plate from the car‚ the two men returned to Kansas. On April 17 and 18‚ the men moved 108 fifty-pound bags of ammonium nitrate fertilizer‚ three fifty-five gallon drums of liquid nitromethane‚ several crates of explosive Tovex sausage‚ seventeen bags of ANFO‚ and spools of shock tube and cannon fuse. The two then drove to Geary Lake where they mixed the chemicals together
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------------------------------------------------- Readiness Readiness implies a degree of concentration and eagerness. Individuals learn best when they are physically‚ mentally‚ and emotionally ready to learn‚ and do not learn well if they see no reason for learning. Getting students ready to learn‚ creating interest by showing the value of the subject matter‚ and providing continuous mental or physical challenge‚ is usually the instructor’s responsibility. If students have a strong purpose‚ a
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which list solubility and how soluble the chemicals are. According to Busch (2015) the Solubility Rules are as follows: 1. Salts containing Group I elements are soluble (Li+‚ Na+‚ K+‚ Cs+‚ Rb+). Salts containing the ammonium ion (NH4+) are also soluble. 2. Salts containing nitrate ion (NO3-) are generally soluble. 3. Salts
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How has Human Activity impacted positively or negatively on species diversity? NAME OF CANDIDATE: CENTRE NUMBER: NAME OF SCHOOL: TOPIC: Species Diversity TEACHER: DATE SUBMITTED: Environmental Science Internal Assessment 2012 Caribbean Advanced Profiency Examination Table of Contents Pages * MAP : Study area in Relation to Trinidad 3 * Site Visits 4 * Laboratory
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Chemical T ests for Unknowns Chemical tests have been developed as a means of identifying what functional groups are present in an unknown compound. Since IR and NMR spectroscopy has been developed‚ they are no longer critical to unknown analysis‚ but they can still be useful for confirming what you have determined by spectroscopy. Some of them look cool too! In order for a chemical reaction to work as a chemical test‚ it must 1) create a visible result (a color change‚ a precipitate‚ etc)
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