In the Lewis symbol for a fluorine atom‚ there are __________ paired and __________ unpaired electrons. A) 4‚ 2 B) 0‚ 5 C) 2‚ 5 D) 6‚ 1 E) 4‚1 2. Which of the following would have to gain two electrons in order to achieve a noble gas electron configuration? O Sr Na Se Br A) Sr B) Br C) Sr‚ O‚ Se D) Na E) O‚ Se 3. The electron configuration of the S2- ion is __________. A) [Ne]3s23p2 B) [Ne]3s23p6 C) [Kr]3s22p-6 D) [Ar]3s23p2 E) [Ar]3s23p6 4. The ion NO- has __________
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1. Iron (IIII) and copper (II) sulfate solution Fill a small test tube halfway with copper (II) sulfate solution. Add a 2.0 gram iron rod to the solution and observe the reaction. 2 Fe + 3 CuSO4 = 3 Cu + Fe2(SO4)3 The new product is iron (III) sulfate‚ it contains the Fe 3+ ion which is brown. Lead (II) nitrate and potassium iodide solutions Pour about 2.0 mL of lead (II) nitrate into the test tube. Add 5 to 10 drops of potassium iodide solution to the test tube and record your observations
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Stoichiometry • Calculations involving quantities of consumed reactants and formed products based on a BALANCED chemical equation. Mass Molar Mass Mole Coeff Bal Eqn Mole Molar Mass Mass Example 2 • The Haber Process involves reacting gaseous nitrogen and gaseous hydrogen to form ammonia. Determine the mass in grams of hydrogen gas required to form 1.00 x 103 g ammonia. Your Turn 2 • If you react 52.9 g of potassium chlorate (KClO3) with excess phosphorus
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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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of power or in any way a threat to humanity.” Views of Technology‚ Ian Barbour. In “Computers and Ethics in the Cyberage”‚ Hester‚ D. Micah and Ford‚ Paul J. Prentice Hall: 2001. Technology as a threat to Humanity. This claim of technology and its developments has been argued for more than a decade as it continues to evolve. Firstly‚ the noun ‘threat’ as defined by The Oxford Dictionary is ‘a person or thing likely to cause damage or danger’. while ‘humanity’ can be defined as the world‚ all human
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Special Report Section #1 Option #1 The Late Middle Ages were a time during the 14th century in which three catastrophic events happened. The three events included the Black Death‚ Great Schism‚ and Hundred Years War. These three events changed the arts and culture of Europe drastically. Even though the 14th century was a great time for Europe‚ this time period was also quickly given another name. It became known as the “Crisis of the Late Middle Ages”. First of the three devastating events
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Expanded course description and learning objectives The mythical narratives of the ancient Greeks and the Romans constitute a continuous tradition that extends from before the reach of history to the present day. Myths survive in literary texts and visual art because their narratives have continued to prove compelling and fascinating in different languages‚ historical eras‚ and social contexts (the myths of Odysseus‚ Heracles‚ and Oedipus are just a few examples). Literature and art of all kinds
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Quotes: 1. What a piece of work is a man! How noble in reason! How infinite in faculties... – hamlet 2. Man is born free‚ yet everywhere he is in chains. Rousseau 3. Modern society is rotten even at its roots. Rouseeau 4. Get back to Nature … Noble Savage .. SOCIAL CONTRACT - rouseeau 5. Reason is supreme . Human reason can solve every problem facing humankind. - descartes 6. A work of art is a public dream – frued – Oedipus complex 7. We live in an ordered‚ rational‚ understandable
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