Properties of Water Lab # 1 Biology 111 January 23‚ 2011 INTRODUCTION With surface tension it is made possible for items such as paper clips to float on water‚ because a molecule within the mass of a liquid encounters gravity to all adjacent molecules in all directions. When you use surfactant substances this creates hydrogen bonds. Purpose of experiment 1 will be to show that once the surfactant substances hits the hydrogen bond pulls down paper clips. Things
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alive or not? Is a virus ‚ prion‚ virod‚ or a rock a living organism? What is life? Biologist have studied what makes organism alive for many years and have come to the conclusion the there are nine characteristics of life. Each characteristic has a property which applies to how and organism is alive. Life characteristics are as follows: order‚ metabolism‚ motility‚ responsiveness‚ reproduction‚ development‚ heredity‚ evolution‚ and adaptation. All of the characteristics of life together are what makes
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An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example‚ the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system: if the system is divided in half‚ the mass and the volume change in the identical ratio and the density remains unchanged. According
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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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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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Chapter 6 – Properties of gases lecture notes 1. Gas phase Gases have neither definite shape or volume 1) volume changes with pressure 2) volume changes with temperature 3) gases are miscible 4) gases are generally MUCH less dense than liquids 2. Atmospheric pressure 1 atm = 760 torr (mm of Hg) F= ma F = force m = mass a = acceleration P = F/A - ma/A P = pressure
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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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The purpose of this experiment is to discover the physical and chemical properties of the studied gases. In discovering these properties it allows the student or observer the ability to identify these gases when they come into contact with them. Procedure Before I began the procedure I gathered all my supplies from the given list in the manual. From there I began the actual experiment and diluted the HCL placed in a test tube and then placed the ZN in the tube as well. I placed the stopper
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Cognitive Properties Ashley Weber Principles of Chemistry 2 Experiment 1 02/02/2015 Abstract: Several experiments were performed to observe the colligative properties. This includes the freezing point depression‚ and osmotic pressure. Two ice baths were made‚ one with pure water‚ the other with salt water. The lowest temperature was then record for each bath and compared. The salt water had a lower freezing point than the pure water by 2 degrees which supports the hypothesis that solutions have
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Aug 2006. Zoey‚ Sofia. Toyota Logo – The symbol of Reliability‚ 7 February 2011‚ Famous logo design. Web. 2013 Whoriskey‚ Peter. Toyota recalls 1.5 million vehicles for brake fluids problem. The Washington Post. Web. 21 Oct 2010 Auto patent asset intellectual report. Patent Café Cor.‚ Mar 2009. Best hybrid car rankings. US News. Web. 24 May 2013. 42 Coach and Lexus link style with luxury. BusinessWire. Web. 1 April‚ 1997 Ford settles dispute over hybrid car patent infringement case. September 2010.
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