to poor sanitation‚ hygiene‚ or overcrowding. Travelers are also more susceptible to spreading the virus after visiting countries like Mexico‚ South America‚ Africa‚ or other countries with a high incidence of the disease. In the United States‚ chlorination of water kills HAV that enters the water supply. Symptoms appear 2-6 weeks after the initial infection‚ lasting less than 2 month. Some‚ especially children‚ exhibit no symptoms at all. Early signs are often mistaken for the flu. They include
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But before going deeper on what these tests are‚ what first are the difference between their results which are the primary‚ secondary and the tertiary alcohols‚ aldehydes and ketones? Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group. Note however that there are different kinds of alcohols and Alcohols are categorized into different classes depending on how the -OH group is
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Writing Eqn‚ The Mole‚ Chemical Calculations‚ Acid & Bases 2. Secondary Four Topics- Salts‚ Oxidation & Reduction‚ Metals‚ Electrolysis‚ The Periodic Table‚ Energy Changes‚ Speed of Reaction‚ Ammonia‚ The Atmosphere & environment‚ Organic Chemistry‚ Alkanes‚ Alkenes‚ Alcohols & Carboxylic Acids‚ Macromolecules Physics 1. Secondary Three Topics- Measurement‚ Kinematics‚ Forces‚ Mass Weight & Density‚ Turning Effects of Forces‚ Energy Work & Power‚ Pressure‚ Temperature‚
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explain 6. give an example of each of the following i. Neutral complex ii. Cationic Complex iii. Anionic Complex iv. Hexadentate ligand SECTION B 7. a) Giving reasons arrange the following isomeric alkanes in order of decreasing boiling points i. Pentane ii. 2‚ 2-dimethylpropane iii. 2-methylbutane a) How will you synthesize methane from acetic acid? b) A hydrocarbon C4H10 (A) on monochlorination gives a compound
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Multistep Synthesis of Tetraphenylcyclopentadienone In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product‚ tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield
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A principle concern in the fracking debate lies over the content of the “fracking fluid.” This fluid is used to increase pressure in shale formations and cause fractures that increase permeability and allow greater access and capture of liquid natural gas or other hydrocarbon products that would be otherwise inaccessible or require numerous more wells be drilled (He‚ Li‚ Liu‚ Barbot‚ Vidic‚ 2014). This fluid consists of water and chemical additives such as‚ “ friction reducers to optimize flow characteristics
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Write the letter in Column B that matches the item in Column A on the space provided. ( 1 pt each) A. B. ______1. Deposits of organic materials A. petroleum ______2. Complex mixture of hydrocarbons principally alkanes B. lotion ______3. A process of separating the components of mixtures using different temperatures. c. fossil fuels ______4. It consist of paraffin wax‚ beeswax mixed with coal tar-dye. d. foot powder ______5. The protein
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B. hydrogen. C. carbon. D. oxygen. 14. Which of the following is not a halogen element? A. Chlorine B. Bromine C. Fluorine D. Oxygen 15. All chemical compounds can be divided into two classes. These classes are A. hydrocarbons and alcohols. B. alkanes and alkenes. C. aliphatic and aromatic. D. inorganic and organic. 16. Acetic acid is a compound known as A. bleach. B. mouthwash. C. vinegar. D. ammonia. 17. A carbon compound that contains oxygen between two hydrocarbon groups is known as a/an
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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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By analyzing the data collected in the experiment and subsequently constructing graphs as shown above in figure 5 that plot the change of temperature against time with the inclusion of the different quantities of the isomer of pentane used. There are many kinds of trends which can be speculated about through analyzing the result graphs. Some of the different ways to identify trends within a graph‚ the main one being trend lines‚ the r2 value of the graph. A r2 value is a statistical measure of how
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