Title: Physical and Chemical Properties Purpose: To investigate the physical and chemical properties of pure substances as distinguishing characteristics. Procedure: 1. Set up a well plate with 24 pieces and fill two with either Dilute HCl or Dilute NaOH. 2. Set up four test tubes with any single substance in each one. 3. Observe and record original color and odor of substance. 4. Light flame with matches. -Hold test tube with substance in it over flame with clamps -Observe and record
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Gases and Atmospheric Pressure Three types of motion and kinetic energy -particles in a substance have three type of motion and therefore three types of kinetic energy -vibrational motion -vibreational kinetic energy -all particles have this type of energy -rotational motion -rotational kinetic energy -particles in liquid and fases have some solids have this energy type -translational motion -translational kinetic energy -only particles in liquid and gas have this type of energy
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Kinetic theory of gases Question: How does odor travel from one place to another? Kinetic theory of gases A gas is composed of atoms or molecules The gas particles are in constant random motion Kinetic energy is transferred between particles as they collide Pressure The force exerted per unit of area Formula: pressure/force area Measured by barometer A vacuum is empty space‚ with no particles or pressure. Atmospheric pressure is the collision air particles with objects Units of
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Pressure In Gases Experiment Hypothesis: Using the recommended tire pressure will provide better gasoline mileage. When the tire pressure is lower than the recommended value‚ the surface contact area between the tire and the road is greater. This will cause greater friction and more energy is required to move the car. As a result‚ more gasoline will be consumed. When the air pressure of a car’s tire is higher than the recommended value‚ the contact area between the tire and the road is reduced.
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1)What are all of the greenhouse gases? There are four greenhouse gases that trap and absorb heat on Earth so living organisms can sustain life. Not only are they the greenhouse gases up also make up the 1% in the atmosphere. The greenhouse gases include water vapor (H2O)‚ carbon dioxide (CO2)‚ methane (CH4)‚ and nitrous oxide (N2O). H20 - this is one but it not really talked about on the website 2) Which one is completely human related? (meaning it is not found naturally in the environment)
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1.04 Properties of Water Lab Report Be sure to review this important presentation before attempting this assignment (you may be prompted for your FLVS User Name and Passcode to begin): http://go.flvs.net/bbcswebdav/institution/Curr/Courses/Science/Biology%201/v13/module01/flash_mod01/01_04_slideshow.swf Name: Date: Title: * The title should identify the property of water that you are investigating. Problem/Question: * Identify the purpose of your investigation or the question
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The greenhouse gases and the resulting greenhouse effect are important. If the greenhouse gases were not present in the atmosphere‚ our Earth would be an icebox. We would have climate similar to that in Mars. The average temperature on Earth would have been about -18 degrees Celsius‚ which is below the freezing point of water. If this was the Earth’s temperature‚ there would hardly be any liquid water on Earth and life as known today would not be possible. Therefore the greenhouse effect is important
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overfilling of the sample cylinder but further exacerbated by an increase in temperature between the filling source and the ambient laboratory temperature. A root cause was that the inspector had limited training and experience in sampling liquefied gases. POINTS WORTH REMEMBERING: ➢ Bursting discs will rupture if the ullage space in the cylinder is less than 5%. ➢ Sampling cylinders must be fitted with an ullage tube that is designed to reduce the possibility of overfilling and normally
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Experiment 1 The Heat Capacity Ratio of Gases Purpose The purpose of this experiment is to calculate the heat capacity ratio of gases‚ Helium‚ Nitrogen and Carbon Dioxide‚ and compare with their theoretical values. Introduction Thermodynamics is the study of heat as it relates to energy and work. There are various properties which all relate to each other when determining the characteristic of a certain substance. One of such properties is heat capacity‚ which is the amount of heat energy
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Physical and Chemical Properties Toby Orme-Lab 4 Solubility or Reaction Substance Name Color Odor Effect of Heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver N/A N/A Non soluble Bubbles Basic Hot/fizz N/A Cu Copper N/A Purple then turned black Non soluble N/A N/A N/A N/A Zn Silver N/A N/A Non Soluble N/A N/A Vaporized and fizzed N/A MgO White N/A Omits gas Hazy mix Boiled Rapidly Basic Got hot and fizzed Became thick or pasty CuCO3 Green N/A Turned black Hazy Green Became powdery
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