INTRODUCTION [SLIDE 2] Many chemical compounds found in the Earth’s atmosphere act as “greenhouse gases.” These gases allow sunlight to enter the atmosphere freely. When sunlight strikes the Earth’s surface‚ some of it is reflected back towards space as infrared radiation (heat). Greenhouse gases absorb this infrared radiation and trap the heat in the atmosphere. Over time‚ the amount of energy sent from the sun to the Earth’s surface should be about the same as the amount of energy radiated back
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Experiment 4: Behavior of Gases Introduction: In this experiment‚ the problem trying to be solved is what gas laws are being used when the pressure‚ temperature‚ and volume are being measured. The three gas laws are Boyle’s Law‚ Charle’s Law‚ and Gay-Lussac’s Law. The Boyle’s Law is when volume and pressure are being compared. Pressure and volume are inversely proportional‚ because when pressure goes up‚ volume goes down. The Charle’s Law is when volume and temperature are compared. Volume and
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"Kingly Gases" What is chemistry? According to dictionary.com‚ the definition of chemistry- is the science that deals with the composition and properties of substances and various elementary forms of matter. Chemistry is everywhere. For example: in a kitchen‚ it is in everybody’s chemically treated water‚ or fruits grown with fertilizers and pesticides‚ or polymer material in the marble counter tops. Again‚ Chemistry is everywhere. If a person wanted to go deeper into chemistry‚ they probably would
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greenhouse effect in is the entrapment of the sun’s heat energy in the earth’s atmosphere. Greenhouse gases such as carbon dioxide‚ water vapor‚ methane‚ and nitrous oxides are all gases that contribute to this phenomenon. Carbon dioxide is the most abundant greenhouse gas while water vapor the least harmful gas makes up less than one percent of the gases in the atmosphere. These greenhouse gases are produced naturally by the earth for example carbon dioxide‚ and methane is produced from the waste
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Lab Report: Halogen Reactions Purpose: This experiment will allow for exploration into some of the properties of Group 17 elements (halogens) and their compounds. More specifically‚ the solubility properties of these halogens will be used to predict their reactions. The relative electronegativities of the halogens will be determined. Halides‚such as Cl-‚ Br-‚ and I- will be used to make these determinations. Because this lab is qualitative rather than quantitative‚ there are no calculation
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Lab #4: The Immune System Purpose: The purpose of this lab was to perform and understand the procedures of conducting an ELISA test to determine whether a particular antibody is present in a patient’s blood sample through a virtual simulation. Hypothesis: If I successfully complete this lab‚ I will then understand how to perform an ELISA test‚ the purpose an ELISA test‚ and also how to interpret the results of this test. Materials and Procedures: Materials: Howard Huges medical
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Functional properties such as colour (L*‚ a* and b*)‚ water activity‚ loose bulk density‚ tapped bulk density‚ flowability and cohesiveness in terms of Carr’s Index (CI) and Hausner Ratio (HR) of agglomerated goat milk powder were determined as follows; The colour of agglomerated goat milk powder was determined by Hunterlab colourimeter (Model: Colour Flex EZ). The 3-dimensional scale L*‚ a* and b* was used. The L* is the lightness coefficient‚ ranging from 0 (black) to 100 (white)‚ a* represents
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INDUSTRIAL GASES CHEMICAL ENGINEERING 140 CHEMICAL PROCESS INDUSTRIES 2ND SEM A.Y. 2012-2013 This report is submitted to Engr. Antonio Rivera‚ in partial fulfillment of the requirements of Chemical Engineering 140‚ Chemical Process Industries (2nd sem AY 1213). Submitted by: ________________________ Jc Justine Quintos Received by: _________________________ Engr. Antonio Rivera Jc Justine Quintos 2008-09038 Chemical Engineering 140 Chemical Process Industries INDUSTRIAL GASES ACKNOWLEDGEMENTS
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Derricka Joe Period 5 1 Oct.‚ 2014 Lab Experiment One: Physical Properties Lab Analysis: For our first unknown‚ we observed the color and odor of the substance. The substance was a clumpy‚ white‚ crystal-like substance and it smells like new plastic. When we tested the solubility in water it resulted insoluble and in ethanol it resulted soluble. This substance could not be tested for electrical conductivity because the water was insoluble. We then tested for the PH value and it was neutral. The
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Performed: 02/05/2013 Submitted: 02/06/2013 Section 1: Title Physical and Chemical Properties Section 2: Purpose This labs is intended to help me investigate chemical and physical properties of pure substances. Section 3: Procedure In this experiment‚ I observed substances in their natural state‚ and recorded their apparent physical properties. I then tested the substances to determine how they react when their natural environments were altered. The pure substances were tested to see
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