time to talk about The chemical elements and their origins‚ the creation of music‚ and the evolution of brass wind instruments. First and foremost The Trombone is made of an alloy of 70% copper and 30% zinc known as yellow brass. Copper’s origin while still under debate this is one way it could have formed. Copper may have originally formed
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simple type of electrical battery that is commonly made for school science projects because it illustrates a battery’s main components. Typically‚ a piece of zinc metal and a piece of copper metal are inserted into a lemon. Everyday objects such as galvanized nails and copper pennies can be used for the zinc and for the copper. A single lemon is usually studied using an electrical meter. Several lemons can be wired together to form a more powerful battery that will power a light-emitting diode‚ a buzzer
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length by the width by the height which gave us a volume of 85 cm3 We then calculated the predicted number of pennies it would take to sink our ship by taking the volume of our ship and multiplying it by the density of water using the following formulas and then dividing that result by the weight of a penny (2.5g) which we rounded to 37 pennies. After we had our prediction of how many pennies it would take to sink our ship‚ we placed the ship into a container
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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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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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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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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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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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