metals to rust. The metals we chose were iron‚ copper‚ lead‚ zinc‚ and aluminum. Those are some of the most commonly used industrial metals. We got the salt water directly from the beach‚ so that we would get the same reaction if this happened in real life. The chemicals that are
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CHAPTER 4 The Structure of the Atom Resource Manager Section 86A Objectives Activities/Features Section 4.1 1. Compare and contrast the atomic Discovery Lab: Observing Electrical Early Theories of Matter 1 session 1/2 block models of Democritus and Dalton. 2. Define an atom. Charge‚ p. 87 Section 4.2 3. Distinguish between the subatomic Problem-Solving Lab: Interpreting STM Subatomic Particles and the Nuclear Atom 1 session 1/2 block particles in terms of relative charge and mass
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CHEMICAL REACTIONS OF COPPER AND PERCENT YIELD Objective To gain familiarity with basic laboratory procedures‚ some chemistry of a typical transition element‚ and the concept of percent yield. Apparatus and Chemicals |0.5 g piece of no. 16 or no. 18 copper wire |evaporating dish | |250 mL beaker (2) |weighing paper | |concentrated HNO3 (4 – 6 mL)
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ways‚ such as in wanting to be in all premiere shows of iconic movies and in being in comic conventions. Aside from the four scientists‚ there are also two equally nerdy girls‚ Amie and Bernadette‚ and one regular girl‚ Penny‚ who does not have their high IQs
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Chemistry of Fireworks By Anuradha Sahu Everyone enjoys the amazing firework shows on the Fourth of July with the beautiful vibrant colors and sparks every year. Fireworks have been part of this world for a very long time. They have been used for enjoyment and for signalling purposes. Every culture has their own significance and use of fireworks. But all fireworks have something in common; the chemistry that makes them work. No matter where you find them‚ they are made up of the same compounds
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Exercise in Extracting Copper from a Synthetic Copper Ore Your Name __Mel Hine______________________ Partner’s Name __Jay Ranson____________________ Date _October 2‚ 2012____________ Introduction This laboratory exercise involves the use of dilute sulfuric acid (H2SO4) to leach copper from a synthetic copper-containing ore
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two pennies‚ the probability of heads occurring on one penny is ½. The probability of head occurring on both pennies is ½ x ½ = ¼. 9. Using the law of probability‚ predict the expected outcomes of tossing two pennies. Record the expected outcomes in the proper column in Table 2. Calculate the percent of the total that each combination is expected to occur. To find the percent‚ divide each expected number by 40 and multiply 100. Enter these numbers in the proper column. 10. Toss two pennies simultaneously
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Almost everyone today recognize the Statue of Liberty‚ but not everybody know its history. Plans for the statue was first began in 1865 by Frenchman Edouard de Laboulaye. In honor of the United States’ love of democracy and French-American friendship; according to the National Parks Service. Commissioned to design the work‚ Bedloe’s Island in the New York Harbor was chosen as the location by artist Frederic-Auguste Bartholdi. Because of how it could be seen by boats of immigrants thousands of who
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Synthetic diamonds Halite Activity 1.2 Luster 1. Examine the luster of the minerals and place the letters that corresponds to the luster exhibited. Quartz _________ Galena _________ Limonite _______ Gypsum ________ Talc ___________ Native copper _________ 2. LAB REPORT 1. Name the physical property described by each of the following statements. 3. Breaks along smooth planes ______________________________________ 4. Scratches glass_________________________________________________ 5. Shines
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Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after 30 minutes: Pretty dark coloured. Quite hard to see Lincoln’s head or the Memorial. Part IV: Reaction between baking soda and vinegar Description of what happened when the baking soda and vinegar were combined Immediately
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