UNIT 1: Lesson 1 Key Questions: 1. Magnesium consists of 12 electrons; 2 + indicates a loss of 2 electrons; therefore‚ it now has 10 electrons. 2. The isotope would not be useful for dating bones that are over a million years old because carbon-14 decay at a constant rate‚ with a half-life of 5730 years. Therefore‚ after 40‚ 000 years‚ les than 1% of the carbon-14 is left in the tissue. As a result‚ there is not enough of the isotope in the tissues to determine the age of the bones. 3. The four
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NaI /acetone (SN2) AgNO3/ethanol (SN1) Bromobenzene NR NR Bromocyclopentane X 2 sec Bromocyclohexane NR 4 sec 2-bromobutane 5 min 2 sec 2-chlorobutane NR X Chloroacetone 7 sec X 1-chlorobutane X X t-butyl chloride NR 6 sec Benzyl chloride 3 min X Conclusions and discussion Bromobenzene undergoes no reaction for both SN1 and SN2. This is because bromobenzene is very stable‚ and contains allylic and vinyllic bromine‚ which is also very stable
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world. A lot of people believe that Archaea are better adapted to living in extreme environments than bacteria and to an extent they are as they have an ether bond opposed to an ester bond in their phospholipid bilayer membrane which surrounds the cell. This ether linkage is chemically far more resistant than the ester linkage‚ allowing the archaeon to be far more resistant to extreme acidic or alkali environments and high temperatures and so on. However‚ in this sample of sediment from the Marianas
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TutorBreeze.com Contact for Online Tutoring in Physics‚ Math‚ Chemistry‚ English (xv) Chlorobenzene to p-nitrophenol :- (xvi) 2-Bromopropane to 1-bromopropane :- (xvii) Chloroethane to butane :- (xviii) Benzene to diphenyl :- (xix) tert-Butyl bromide to isobutyl bromide :- (xx) Aniline to phenylisocyanide :- ©TutorBreeze.com Please do not copy the answer given here Write to us for help in understanding the solution NCERT/CBSE CHEMISTRY
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filters Silicon powder Wetted explosives Sulfur Titanium Powder‚ wetted Zinc resinate Naphthalene Spontaneously Combustible Activated carbon Lithium alkyds Pentaborane Phosphorus Potassium sulfide‚ anhydrous Oily rags Seed cake Sodium sulfide‚ anhydrous Butyl lythium Dangerous When Wet Alkaline earth metal alloys
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"For everyone who calls on the name of the Lord will be saved" (Romans 10:13). In James Baldwin’s novel‚ Go Tell it on the Mountain‚ "Gabriel’s Prayer" shows the reader how Gabriel’s ultimate sin keeps him from salvation. Gabriel’s ultimate sin is not adultery‚ but it is how he cannot except his sins and repent for them because he holds everyone else around him accountable for what he’s done. Gabriel has a sanctimonious attitude‚ but he has a secret life that his wife‚ Elizabeth‚ doesn’t know about
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BACKROUND INFORMATION Organic chemistry is the study of hydrocarbons and their various deviations. (Ex. natural gas‚ paper‚ proteins‚ carbohydrates) Saturated hydrocarbons are hydrocarbons with carbon-carbon single bonds. (Ex. C-C) Unsaturated hydrocarbons are hydrocarbons with one of more multiple carbon-carbon bonds. (Ex. C=C double bond‚ triple bond‚ or both) Stereoisomers have the same molecular and structural formulas but different orientations of atoms in space. Constitutional isomers
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` an information system consulting firm BUSINESS CASE Module 1: Final assignment ICS‚ Inc. Ivana is the owner of ICS‚ Inc.‚ an information systems consulting firm of 20 employees. The company mostly designs and implements information technology projects for small and medium-size businesses in the metropolitan area. Although ICS has a sufficient level of business‚ the environment is becoming more competitive as more entrepreneurs are starting their own information technology
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Published: 2006 Number of pages: 192 pages II. GENEALOGY Luis was a illegitimate son of Don Vicente. Trining was his first degree cousin and also his lover. Ester was just a fling partner of Luis and also Trining’s classmate in school. Victor is Luis’s half brother. III.LITERARY MAP Baclaran Church‚ it is where Luis and Ester attended the midnight mass for Christmas. Luis’s mansion in Manila. This was one of the farms owned by Don Vicente at Sipnget. IV.DESCRIPTION OF THE
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condenser and refluxed for 60 min. The cooled mixture was washed with 5% sodium bicarbonate (2 x 1.0 mL). Sodium sulfate was added to the vial and the crude ester was removed and transferred to a clean vial. The vial was sealed and allowed to stand for 48 hr at rt. The clear liquid was distilled using a Hickman still and hot plate. The purified ester was removed from the still head to yield isopentyl acetate (0.29 g‚ 25%) and observed as a clear liquid. bp 140°C (lit1 142°C). Discussion The sulfuric
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