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1 Explain what happens to a crystal of iodine when it is heated ...
https://www.mytutor.co.uk/answers/23883/A-Level/Chemistry/Explain-what-happens-to-a-crystal-of-iodine-when-it-is-heated-5marks/
A crystal of iodine sublimes from its solid state to its gaseous state without turning into a liquid. Iodine forms a molecular covalent crystal.
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2 Give reason why a crystal of iodine on slow heating in a ...
https://byjus.com/question-answer/give-reason-why-a-crystal-of-iodine-on-slow-heating-in-a-closed-flask-turns/
Iodine crystals, dry ice, naphthalene (moth balls) and arsenic tend to sublimate. Sublimation occurs at a very low super cold temperature and low pressure.
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3 Chemistry - Bonding and Periodicity Flashcards - Quizlet
https://quizlet.com/gb/561125761/chemistry-bonding-and-periodicity-flash-cards/
Explain why solid iodine vaporises when warmed gently [2 marks]. London forces between iodine molecules are broken which require little heat energy to break ...
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4 Why do Iodine crystals sublime? - Chemical Forums
https://www.chemicalforums.com/index.php?topic=3946.0
You are correct. It's because of the relatively weak Van der Waals forces holding the I2 molecules together. Iodine has a very high molecular ...
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5 Sublimation of iodine: Rise and fall of a misconception
https://uwaterloo.ca/chem13-news-magazine/october-2015/feature/sublimation-iodine-rise-and-fall-misconception
For years I believed that solid iodine, I2, only underwent sublimation when heated at atmospheric pressure. I was so wedded to this idea that I performed ...
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6 Sublimation of Iodine - Chemistry Stack Exchange
https://chemistry.stackexchange.com/questions/37413/sublimation-of-iodine
Iodine sublimes for the same reasons that all solids do: because it has some equilibrium vapor pressure an normal conditions.
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7 Bonding | Science Skool
https://www.scienceskool.co.uk/uploads/9/5/5/0/9550437/[03]_bonding.pdf
Describe the structure of and bonding in graphite and explain why the melting point of ... Explain why iodine vaporises when heated gently.
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8 Heating iodine - YouTube
https://www.youtube.com/watch?v=nf2YNZDRnco
Nigel Baldwin
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9 Iodine and graphite are both solids. When iodine is ... - Page 2
https://pmt.physicsandmathstutor.com/download/Chemistry/A-level/Topic-Qs/AQA/Physical-I/1.3-Bonding/Set-F/Bonding%20&%20Physical%20Properties%203%20QP.pdf
Describe the structure of and bonding in graphite and explain why the melting point ... (c) Explain why iodine vaporises when heated gently.
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10 The table shows some data about the elements bromine and ...
https://drwainwright.weebly.com/uploads/2/9/0/7/29079717/bonding_and_physical_properties.pdf
In terms of structure and bonding explain why the boiling point of bromine is different from that ... (c) Explain why iodine vaporises when heated gently.
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11 DP IB Chemistry: HL - 4.1 Ionic & Covalent Bonding
https://www.savemyexams.co.uk/dp/chemistry_hl/ib/16/topic-questions/4-chemical-bonding--structure/4-1-ionic--covalent-bonding/-/structured-questions-paper-2/hard/
Sodium chloride and iodine are both solids. Sodium chloride does not melt until it reaches a temperature of 1074 K yet iodine sublimes when heated gently, ...
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12 Chemistry.pdf - Squarespace
https://static1.squarespace.com/static/54c174ede4b09cfa7859949a/t/596dea1cd482e9c1c6b6da04/1500375583189/Chemistry.pdf
(c) Explain why iodine vaporises when heated gently. (d). St Mary's Catholic School. State why iodine is a very poor conductor of electricity.
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13 are shown below. (i) Why is each bond angle exactly 120° in BCl
https://simple123site.files.wordpress.com/2018/04/bonding.pdf
(d) (i) Explain why the heat energy required to melt sodium chloride is large. ... (c) Explain why iodine vaporises when heated gently.
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14 Solid iodine that is left at room temperature sublimates from a ...
https://homework.study.com/explanation/solid-iodine-that-is-left-at-room-temperature-sublimates-from-a-solid-to-a-gas-but-when-heated-quickly-a-different-process-takes-place-when-1-g-of-iodine-crystals-is-placed-in-a-sealed-glass-ampoule-and-gently-heated-on-a-hot-plate-a-layer-of-purple-g.html
When 1 g of iodine crystals is placed in a sealed glass ampoule and gently heated on a hot plate, a layer of purple gas is formed at the bottom, and the iodine ...
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15 AQA-CHEM1-W-QP-JUN10.pdf - A Level Chemistry
https://alevelchemistry.co.uk/wp-content/uploads/papers/AQA-CHEM1-W-QP-JUN10.pdf
Magnesium nitrate decomposes on heating to form magnesium oxide, nitrogen dioxide ... Explain why iodine vaporises when heated gently.
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16 A-Level Chemistry
https://www.a-levelchemistry.co.uk/uploads/9/0/4/5/90457821/1.3_question_database.rtf
(ii) Explain how the ions are held together in solid sodium chloride. ... (b) Explain why solid iodine vaporises when warmed gently.
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17 Topic 1 Appendices.qxp
https://www.edu.gov.mb.ca/k12/cur/science/found/gr11_chem/t1_appendices.pdf
Explain any differences in your results for distilled water and tap water. ... Heat gently with a burner or on a hot plate until the iodine begins to.
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18 Chapter 11 Practice – Chemistry Fundamentals
https://pressbooks.online.ucf.edu/chemistryfundamentals/chapter/assignment-intermolecular-forces/
Heat is added to ice at 0 °C. Explain why the temperature of the ice does not change. What does change? What feature characterizes the dynamic equilibrium ...
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19 GENERAL TESTS, PROCESSES AND APPARATUS - PMDA
https://www.pmda.go.jp/files/000203130.pdf
mass of powdered potassium hydrogen sulfate and heated gently over a free flame, the pungent odor of acrolein is evolved. Iodide.
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20 Activity2_Sublimation.docx - 1. Define sublimation based on...
https://www.coursehero.com/file/p1ls5vp5/Sublimation-of-iodine-may-be-used-to-reveal-latent-fingerprints-on-paper/
A substance sublimes because of the absorption of heat which provides ... and then heated the iodine vaporise because iodine is sublimable so when we heat ...
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21 Forensics Lab 8.2: Revealing Latent Fingerprints Using Iodine ...
https://makezine.com/forensics-laboratory-82-revealing-l/
The operator warmed the tube in his hand and blew gently into one end of the wand. His breath vaporized iodine and expelled iodine vapor ...
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22 Chapter 11: Liquids
https://saylordotorg.github.io/text_general-chemistry-principles-patterns-and-applications-v1.0/s15-liquids.html
The intermolecular forces in liquids are strong enough to keep them from expanding significantly when heated (typically only a few percent over a 100°C ...
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23 SAMPLE PREPARATION FUNDAMENTALS FOR ... - Agilent
https://www.agilent.com/cs/library/primers/Public/5991-3326EN_SPHB.pdf
Liquid is removed by gentle heating at atmospheric ... A defined sampling plan is important to ensure the best possible sample of the original lot.
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24 Properties of Halogens - StudySmarter
https://www.studysmarter.us/explanations/chemistry/inorganic-chemistry/properties-of-halogens/
Fluorine, chlorine, bromine, iodine - these are all examples of halogens. ... because any specimen would immediately vaporise under the heat of its own ...
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25 OCR (Text) - NLM Digital Collections
https://collections.nlm.nih.gov/ocr/nlm:nlmuid-101619734-bk
To explain more fully what is meant by the expression molecule, ... Cover some fine iron wire with water, heat gently, and add iodine in fragments as long ...
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26 A Revision of the Atomic Weight of Iodine - jstor
https://www.jstor.org/stable/20021974
Ladenburg's method consisted in heating silver iodide in a ... effected by warming so gently that almost no gas was evolved. When.
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27 iodine - Physical and chemical properties | Britannica
https://www.britannica.com/science/iodine/Physical-and-chemical-properties
The iodine molecule can act as a Lewis acid in that it combines with various Lewis bases. The interaction is weak, however, and few solid complex compounds have ...
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28 Solutions Manual for Thermodynamics and Chemistry
https://www2.chem.umd.edu/thermobook/SolnsMan.pdf
4.1 Explain why an electric refrigerator, which transfers energy by ... force F by a weight attached to the bottom end, gentle heating is ...
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29 Atomic structure, Amount of substance, Bonding Chaps 1,2,3 ...
https://www.brainscape.com/flashcards/atomic-structure-amount-of-substance-bon-3783241/packs/5651091
Predict the type of crystal structure in solid zinc fluoride and explain why its melting point is high. ... Explain why iodine vaporises when heated gently.
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30 Advanced Chemistry for You - Page 87 - Google Books Result
https://books.google.com/books?id=G25Vej3C5pkC&pg=PA87&lpg=PA87&dq=explain+why+iodine+vaporise+when+heated+gently&source=bl&ots=huHDQrzJo_&sig=ACfU3U3Wxj71oSXbXu6R0Av-s_Y7lR8r9A&hl=en&sa=X&ved=2ahUKEwi32frJ3dv7AhWlKEQIHcWbDkgQ6AF6BQi0ARAD
... of iodine , heated gently in a test tube , gave off a purple vapour . ... the vapour . c ) Explain why iodine vaporises at a relatively low temperature ...
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31 Sublimation of Iodine | Exhibition chemistry - RSC Education
https://edu.rsc.org/exhibition-chemistry/sublime-iodine/2000060.article
Below a substance's triple point, heating can cause the solid to sublime directly to the gas phase. Many students come to lessons on ...
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32 Iodine - Wikipedia
https://en.wikipedia.org/wiki/Iodine
Iodine is a chemical element with the symbol I and atomic number 53. The heaviest of the ... Heat of vaporisation, (I2) 41.57 kJ/mol.
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33 What do you observe when:(i) Iodine crystals are heated in a ...
https://www.toppr.com/ask/question/what-do-you-observe-wheni-iodine-crystals-are-heated-in-a-test-tubeii-iron-nails/
(i) When Iodine crystals are heated, the van der Waals forces are easily overcome and the molecule breaks into the gas phase. They sublime and form ...
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34 Heating iodine - YouTube
https://www.youtube.com/watch?v=Zkzjl5Ky9VQ
Jul 4, 2012
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35 Jodine Solid iodine that is left at room temperature subli
https://www.numerade.com/questions/jodine-solid-iodine-that-is-left-at-room-temperature-subli-mates-from-a-solid-to-a-gas-but-when-heat/
"About 1 g of iodine crystals is placed in a sealed glass ampoule and gently heated on a hot plate. A layer of purple gas is formed at the bottom, and the ...
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36 Ebook: Chemistry - Page 504 - Google Books Result
https://books.google.com/books?id=E6RvEAAAQBAJ&pg=PA504&lpg=PA504&dq=explain+why+iodine+vaporise+when+heated+gently&source=bl&ots=kVMW2GuYp1&sig=ACfU3U3aFbPU-lKLM46owkplvYJs-TnP6g&hl=en&sa=X&ved=2ahUKEwi32frJ3dv7AhWlKEQIHcWbDkgQ6AF6BQiwARAD
Supercooling occurs when heat is removed from a liquid so rapidly that the ... Gentle stirring or the addition to it of a small “seed” crystal of the same ...
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37 Scientific American: Supplement
https://books.google.com/books?id=quo8AQAAIAAJ&pg=PA1850&lpg=PA1850&dq=explain+why+iodine+vaporise+when+heated+gently&source=bl&ots=ldhnc3IB5W&sig=ACfU3U1nw4k3u-3cdPwDvGGBOvAKyCTmiA&hl=en&sa=X&ved=2ahUKEwi32frJ3dv7AhWlKEQIHcWbDkgQ6AF6BQiyARAD
The exhausted ashes coal , and explained how they differ from one another in ... of heating some of calcium sulphate in water , sulphuric acid was added .
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38 English Mechanics and the World of Science
https://books.google.com/books?id=aEJCAQAAMAAJ&pg=PA546&lpg=PA546&dq=explain+why+iodine+vaporise+when+heated+gently&source=bl&ots=KNgq3o4hLd&sig=ACfU3U3fyWhnoEzpkgK8_0VdwkQy8ZTmJA&hl=en&sa=X&ved=2ahUKEwi32frJ3dv7AhWlKEQIHcWbDkgQ6AF6BQizARAD
It is constructed in a way that hardly any heat escapes , only what a 14in ... Will someone kindly explain how , by simple arithmetic , I can get at the ...
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