by which matter can change phase. Which are exothermic and which are endothermic? 5. Rubbing alcohol is very volatile. What does this statement mean? 6. What is dynamic equilibrium? Vapor pressure? 7. How is the “normal boiling point” different from any other boiling point? 8. When do you use heat of vaporization and heat of fusion instead of specific heat? 9. What are intermolecular forces? Explain each one and their relative strengths with respect to one another. 10. Are water and oil miscible
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Unit 2 Lesson 5 16. a) 1‚2‚5 trimethylhexane b) 3 ethyl 2‚4‚6‚7 tetramethyloctane c) 2‚2 dimethylpentane 17. a) b) c) 18. C7H16 (l) + 11O2 (g) ---------> 7CO2 (g) + 8H2O Heptane + oxygen carbon dioxide + water * Takes 11 molecules of oxygen and 1 molecule of heptane to make 7 molecules of carbon dioxide and 8 molecules of water 19. a) A reason for this trend is that oil deposits were being found all around the world during the time period between 1910 and 2000
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Lab Section: 73426/0 | Data Tables: Length and Measurements Object Measured | Length in cm | Length in mm | Key | 6.4cm | 64mm | Fork | 26.5cm | 265mm | CD | 17cm | 170mm | Warm Temperature Measurements Hot tap water temperature _73___˚C Boiling water temperature _101___˚C Cold Temperature Measurements Cold tap water temperature __15__˚C Ice water temperature __0__˚C Volume Measurements Volume of completely filled small test tube __16__mL Number of drops in 1 mL ___21_drops Volume
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you’re left with the residue which is the other component. In India‚ citizens would often boil saltwater to obtain salt. The problem with evaporation is that you can only get one component from the substance and it’s usually the one with the higher boiling point. Do not confuse
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would therefore be moving faster at points D-E than at B-C. This can be observed by looking at the bubble formation during D-E which shows a higher temperature and Ek than the solid alcohol melting into a liquid state. Potential energy is the greatest for the tert-butyl alcohol at point F. This is where the Tert-Butyl Alcohol is a gas. The definition of potential energy is the energy of position/ stored energy‚ which corresponds with the spacing of particles. At point F‚ the gas particles are spread
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Altanzaya Ganzorigt ( Zaya) Difference between America and Mongolia All people are similar to each other by physically; eventhough‚ we are different from each other by where you born. Indeed‚ the US and Mongolia are located far from each other ; they have many similarities. For example‚ both US and Mongolia have huge land and many varies of climate and landscape. Due to large size‚ varies across the large country from tropical beaches to Alaska while Mongolia have many different places from Gobi
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soluble in water and soluble in organic solvents. Clove oil is soluble in dichloromethane so its easily extracted by evaporating dichloromethane. Eugenol has a high boiling point (254 oC)‚ and many organic compounds decompose at such high temperatures. Steam distillation allows eugenol to be distilled at a much lower boiling point (< 100 oC)‚ thus minimizing the potential for
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about how foods react to and inter-act with each other in a culinary or scientific manner‚ all I know is I really like to dip things in chocolate. My problem I had was that my chocolates kept burning‚ even though I was using the same method (double boiling) to melt each type of chocolate. I couldn’t understand why each of them reacted differently to the same method of heating (physical stimuli). I was thinking how cooking is like a science experiment in some ways. For example‚ you come up with an
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body is of two thirds of water. It is clear‚ colourless liquid that appears blue when viewed through a thickness of 20 ft. The colour reflects not only from physical causes but also from suspended impurities. The freezing point of water is 0degree centigrade and its boiling point is 100 degree centigrade. Water is the most essential component of life and is vital for sustenance. The importance of water in our diet is apparent as it helps the body to perform specific metabolic tasks and regulates
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Jessica Parr Question 1 2 3 4 5 6 7 8 9 10 Maximum points 18 8 12 12 8 10 12 10 6 6 (Sub-T) PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: __________________________________________ Last 4 Digits of USC ID:_____ _____ _____ _____ Lab TA’s Name: _________________________________ Score (102) Grader Question 11 12 13 14 15 16 17 18 19 20 (Sub-T) TOTAL Maximum points 12 10 10 10 12 12 10 8 8 6 (98) 200 Score Grader
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