1. (a) The diagram below represents the industrial fractional distillation of crude oil. (i) Identify fraction A. (ii) What property of the fractions allows them to be separated in the column? (2) (b) A gas oil fraction from the distillation of crude oil contains hydrocarbons in the C15 to C19 range. These hydrocarbons can be cracked by strong heating. (i) Write the molecular formula for the alkane with 19 carbon atoms. (ii) Name the type of reaction involved in cracking. (iii) Write
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Scuba diving is a form of underwater diving in which a diver uses a scuba set to breathe underwater. According to the Professional Association of Diving Instructor (PADI)‚ a “DEEP DIVE” is considered to be anything from 18 meters (60 ft) to 30 meters (100 ft). A scuba diver moves around underwater by using swim-fins attached to the feet‚ however external propulsion can be provided by a diver propulsion vehicle. Scuba diving may be performed for a number of reasons; either for recreational purposes
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FINAL SUMMATIVE PRESENTATIONS This evaluation will involve working in groups of 3 to prepare a written report‚ poster and a demonstration of food preparation of your chosen topic. PART A: WRITTEN REPORT This should give the reader background information on your selected topic. This information will be shared with the class as an ongoing commentary in addition to your demonstration. The report will be typed using proper report format with a title page and subheadings. It should
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Keghan Chapter 8 MULTIPLE CHOICE QUESTIONS Topic: Structure Elucidation 1. An alkene adds hydrogen in the presence of a catalyst to give 3‚4-dimethylhexane. Ozonolysis of the alkene followed by treatment with zinc and acetic acid gives a single organic product. The structure of the alkene is: CH3 A) CH3CH=C-CHCH2CH3 (cis or trans) CH3 CH3 B) CH3CH2C=CCH3 (cis or trans) CH2CH3 C) CH3 CH2=CCH2CHCH2CH3 CH3 CH2 D) CH3CH2CCHCH2CH3 CH3 CH3 E) CH3CH2CHCHCH=CH2
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If you hear the word monster today a lot of different creatures and story’s come to your mind. But did you ever think about how monsters are created? Timothy K. Beal’s “Our Monsters‚ Ourselves” is arguing the idea of that we are creating the monsters in our life ourselves. He is using many rhetorical techniques to get the readers to not only agree‚ but also relate to what he is writing. Beal’s arguments are well organized and persuasive. The rhetorical techniques ethos‚ logos and pathos strongly
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FULFILLING OUR SACRED MISSION IN LIFE As spiritual beings having human experiences‚ in certain periods of the year we start asking ourselves vital questions which in essence are 100% of a spiritual nature. In each one of our lives is printed our mission in our current life. This was done as we were waiting to be born again in the sacred school of our soul. These whisperings are common on the years where we become much more receptive in order to get prepared to carry out dynamic action the next year;
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Technology is an improved route to an unimproved target. Technology is associated with innovation. It has definitely changed our lives for the better. Looking back in time‚ we realize that how much our lives have changed due to the fruits of technology.It has provided us with freedom and less consumption of time and resources. One the most effective pieces of technology is the mobile phone‚and nowadays being equivalent to a civilization. Due to technology changes‚ the dependency upon technology has
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Chemistry plays an important part in studying Biology. It answers some questions that Biology could not explain alone. Questions like: How does an organism convert foods for energy? How do plants use sunlight and water into all the things that cells needed to grow and reproduce? How does the basic unit of life passed through generation to the next? Here are some contributions of Chemistry in Biology: • Within atomic theory‚ chemistry contributes towards biology in the understanding of atoms
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ago today I was going to watching Kurt referee his very first high school basketball game. I was so excited and so proud of him. I had no clue three years ago how much reffing would become a part of our life. Reffing is life in our household. Honestly‚ reffing takes up about 9 months of our life. From November-March is basketball season. May-July are camps where he is away on the weekends. October is when he has all the clinics and scrimmages. Basically he is off April‚ August and September
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Module 4: 10. Strong Bases: NaOH‚ KOH‚ Na2CO3‚ NaHCO3‚ Na3PO4‚ NaHPO4‚ Strong Acids: Fe(NO3)3‚ HCL‚ HNO3‚ Al(NO3)3‚ NiCl2‚ H2SO4 11. Acidic Neutral Basic NaCl KNO3 NaOH HC2H3O2 Na2CO3 NaC2H3O2 NaHCO3 Fe(NO3)3 NaNO3 Na3PO4 HCl MgSO4 KOH HNO3 Na2SO4 NaHPO4 CuSO4 NaNO2 CoCl2 Al(NO3)3 NiCl2 H2SO4 KCl NH4Cl 12. CuSO4 CuCO3.Cu(OH)2(s) + 2 H2SO4(aq) ----> 2 CuSO4(aq) + CO2(g) + 3 H2O(l) Na3PO4 Na3PO4 (aq) + 3H2O (l) --> H3PO4 (aq) + 3NaOH
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