floats ( temperatures drop molecules come together as a solid‚ elections repell (the molecules get less close thus making the ice have less density than water. If this did not occur ice could sink and destroy living organism. (sea animals) Thermal properties Water resist temperature change‚ due to high specific heat which in turn helps our body (70% water) keeps the water from overheating or freezing. Absorbency The ability to take in a material Adhesion The tendency of water to stick to other
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Title : Properties of hydrocarbon Objective : 1) To study the properties of hydrocarbons. 2) To determine the unknown samples. Results : Part A : Combustion Compounds Observations Hexane There was orange flame and burned mildly during the burning process. No soots and smoke were produced. C6H14 + 19/2 O2 6CO2 + 7H2O Cyclohexene Orange flame burned vigorously. A small amount of black soot and smoke were produced during the burning process.
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Magnesium Mg(Z=12) in Group 2 Alkaline Earth Metals The structure of the element: Giant lattice metallic structure of immobile positive metal ions surrounded by a ’sea’ of freely moving mobile electrons (so-called delocalised electrons). Physical properties: A moderately hard silvery-white solid; mpt 649oC; bpt 1090oC; good conductor of heat/electricity. Group‚ electron configuration (and oxidation states): Gp2 Alkaline Earth Metal; e.c. 2‚8‚2 or 1s2 2s2 2p6 3s2; (+2 only) e.g. MgCl2‚ MgO.
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FALL 2012 ME 305 FLUID MECHANICS I EXPERIMENT 1 MEASUREMENT OF FLUID PROPERTIES PREPARATION: In this course‚ you will conduct the experiments at the Fluid Mechanics Laboratory‚ by yourselves‚ without any help or instruction from the teaching assistants. You must read the lab sheet thoroughly and understand what you are expected to do (and why) for each experiment‚ before coming to the lab. At the end of each experiment‚ you will have to do certain calculations‚ present and plot (when asked)
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Chemistry Physical and Chemical Properties Submitted by Date Submitted: February 2‚ 2014 Date Performed: January 31‚ 2014 Lab Section: Chem-180 Course Instructor: Professor Spenser Purpose The purpose of this lab experiment is to observe physical and chemical properties of substances which are also
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Physical properties can be seen‚ touched‚ or even measured without the identity of the substance changing. The identity of the substance can be its shape or color. Three physical forms of a substance are solid‚ liquid‚ and gas. Water for example can transform into all three physical forms without its identity changing. The characteristic of water as a shape can be used as an example of a physical property. Water can be frozen into ice‚ vaporized‚ or liquidized. The shape of water as a solid is
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PROPERTIES OF PREDICATE Properties of predicate devide into these type: Properties of Predicates Semmetry Reflexsive‚ Transitive Assymetry irreflexsive intransitive Symmetric predicate P = a two – place predicate X = referring expression Y = referring expression XPY entails YPX P = a symmetric predicate Assymmetric predicate P = a two – place predicate X = referring expression Y = referring expression XPY contradicted to YPX P = an assymmetric predicate
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CHAPTER 1 INTRODUCTION "C’mon. Everyone’s doing it." So why shouldn’t you? It’s almost expected that you will experience peer pressure frequently throughout your teen years. Say you’re invited to a party where you know there will be alcohol or drugs. A friend decides to cut class. Someone offers you a cigarette. Or friends talk about having sex with their boyfriends or girlfriends. How do you respond? Are you tempted to follow their examples‚ or can you stand strong in your own belief system
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Serena Proeung English 111 Professor Holder Blood Pressure Have you had your blood pressure taken recently? If you see your doctor for your yearly checkup‚ you would notice that the first thing they would do is check your vitals. Taking your blood pressure is one of the first steps when taking your vitals. Blood pressure refers to the force of blood pushing against artery walls as it courses through the body .Although many of you may not think that pressure of the blood system is not such a fascinating
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Tonya M. Stevens English Composition 02/10/2013 Shaiy Kindel Peer Pressure WebMD.com‚ Teens and Peer Pressure retrieved 2/5/2013 National Youth Advocacy Council website American Social Health Associations “lwannaknow.org” web site The article talks about friends and what you will do if you got to a party with your friends. If there are drugs‚ alcohol or even cigarettes will you as a person be able to hold your own and not be pressured into doing these types
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