Nitrate No reaction Lead and Iron (III) Chloride Lead oxidizes Iron and Copper (II) Sulfate Iron turns pink College Chemistry 1 Unit 2 Lab 2 Chemical and Physical Properties Chemical and Physical Properties Introduction: I will figure out different chemical and physical properties of various chemical substances. Materials and Methods: I filled four different test tubes with a little bit of Magnesium. The first one I recorded the color and odor. Then I heated it
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Chemical Properties of Egg Tempera Art is traditionally viewed as a creative process far removed from science. However‚ beyond the imaginative efforts that contribute to the creation of a work of art are the physical materials that are used as the medium. While science is not an essential part of the thought and design process‚ an understanding of the chemical properties of different art media is integral to creating a work of art that will not only match the artist’s vision but will also stand
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Experiment # 1 Date: 18/12/13 Title: Chemical Properties of Alkanes. Aim: To test the reactivity of alkanes using cyclohexane as an example. Apparatus/Materials: Cyclohexane‚ liquid alkane‚ aqueous bromine‚ test tubes‚ light source‚ watch glass‚ splint‚ 0.1 MKMnO4‚ concentrated H2SO4‚ dilute H2SO4. Method: Combustion: 1. A watch glass was placed on a benched protection sheet in a fume cupboard and the extractor in the fume on. 2. 4 drops of cyclohexane was placed on the watch glass using
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As a crime scene investigator you are exposed to many health risk or hazards. Although‚ there is not truly one time were you cannot find yourself in a very unique situation during an investigation. Furthermore‚ when investigating a scene you must always prepare yourself for whatever may happen and protect yourself at all times. Therefore‚ your safety is very important as well as the priority to limit any injuries or illnesses to exposures. Now when responding to a crime scene an investigator or
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A thorough documentation of a crime scene is an important part of any investigation. Several different methods of documentation are use; however‚ it is the combination of the methods that best aids investigators during the investigations into prosecution and trial. One of the first steps in documenting the scene would begin with the investigators notes. The notes will contain multiple pieces of information that may prove to be useful during the span of the case. The investigator should make notes
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protective gear and equipment for each scene. Control samples are always needed in order to include or exclude evidence being tested. Each piece of evidence should be packaged and stored ready for transport and each piece of evidence should be separately packaged. These precautions are very important to have a successful crime scene investigation (A Guide for Investigating Bomb and Explosion Scenes: Evaluating the Scene‚ 2001). To decrease the risk of contamination the scene must be investigated as soon as
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Physical properties of organic compound Low boiling point group: alkane‚ alkene‚ alkyne and ether Boiling point is the exact temperature that the state of compound change from liquid to gas‚ which need to break the intermolecular forces. The stronger the intermolecular forces‚ the higher the boiling point. Since straight chain alkane‚ alkene and alkyne only experience dispersion forces‚ the compound with more carbons have higher boiling point as more carbons contribute more forces. Branched
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etc. One job that combines and gives a general overview of these careers‚ is Crime Scene Investigation. Crime scene investigators(CSIs) work closely with law enforcement to help gather and investigate evidence found at a crime scene. I believe I will enjoy this job; even with the gruesome sights I might have to witness‚ because I love solving things and I also enjoy the idea of bringing justice to the victims of a crime. As I’ve researched
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Lab Experiment 6 : Chemical and Physical Properties Lab Experiment 6 : Chemical and Physical Properties Purpose: The purpose of this lab is to test substances and to determine the physical and chemical properties of substances. Material matches‚ glassbeaker 100 mL‚ burner-fuel‚ goggles-Safety‚ stirring rod - Glass 1 test tube(5)‚ 13 x 100 mm in bubble bag‚ test-tube-clamp-holder test-tube- cleaning-brush‚well-Plate-24‚ well-plate‚ litmus paper‚ blue - in
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safe from harm‚ crimes‚ and individuals that pose a threat to our way of life. Currently‚ one of the most prevalent‚ and most difficult crimes to fight against is terrorism. The war on terror is a central concern for all United States citizens‚ lawmakers‚ and of course‚ the President of the United States. In addition to terrorism‚ there are other types of crimes that need to be addressed. Property crime is one such crime. In contrast to terrorism‚ property crime is an easier crime problem to address
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