iLab‚ Week #2 CATIONS AND ANION LAB Introduction In this experiment we will be mixing two ionic compounds: potassium chromate and lead nitrate; both are soluble in water. This will be demonstrating a double-replacement reaction/reactions between cations and anions. If a reaction does occur it will form a precipitate due to one of the newly formed compounds not being soluble in water. Once the experiment was completed there was what appears to be a “solid” substance remaining in the
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communicate with audiences who have decided to pay attention via websites and electronic messages. As you read in Chapter 1‚ the continuous evolution of technology has expanded communication options. Email‚ instant messaging (IM)‚ web communications‚ and voice and wireless technologies are important tools for accomplishing company goals. Advantages of Email Electronic mail‚ known as email‚ has quickly become the most used communication tool in many organizations. Its ready availability‚ convenience‚ and
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Testing for Cation and Anions OBJECTIVE: • Determine the presence of a cation or anion by a chemical reaction • Determine the cation and anion in an unknown solution All salt solutions have both positive (Cations) and negative (Anions) ions dissolved in it. In this experiment you will observe chemical reactions to determine the presence of specific anions and cations. Compare your observations with the reactions of the known solutions and the unknown solution to determine the ions present
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Electron Configuration Patterns WE CANNOT KNOW THE EXACT LOCATIONS OF ELECTRONS WITHIN ENERGY LEVELS‚ BUT WE CAN DESCRIBE PROBABLE REGIONS OF ELECTRON LOCATION. Our understanding of electron distribution is based on mathematical probabilities that result from knowledge about the behavior of charged particles in an atom: |a) | | |b) |
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Name: Lisa Brewer iLab‚ Week # 2 CATIONS AND ANION LAB Introduction The purpose of this week’s lab is to learn to demonstrate a double-replacement reaction of ionic compounds. To accomplish this‚ two ionic compounds will be mixed together and the product will precipitate out of solution. In this procedure‚ the product must be precipitated out of the solution and then weighed. For this lab‚ lead (II) nitrate (Pb(NO3)2) and potassium chromate (K2CrO4) will be reacted together to demonstrate
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Information has never been as easily and quickly available as it is today. The airwaves are filled with all sorts of news which can be accessed at the touch of a button twenty-hours a day. This has provided a greater choice for the consumers. However‚ even just as we are getting used to it‚ more is on the way. Technological advances‚ like the digital television and the Internet‚ promise to take the quantity and speed of the news one stage further. These news services on the Internet offer consumers
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the design and manufacture of tools and machines. Electrical engineering is about the generation and distribution of electricity and its many applications. Electronic engineering includes marine‚ automobile‚ aeronatical‚ heating and ventilating and others. Electrical engineering includes electricity generating‚ electrical installation‚ lighting‚ etc. Mining and Medical engineering belong partly to mechanical and partly to electrical. Fuel transport and delivery Coal may be delivered
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There is a special time of year when we all enjoy a feeling of togetherness amongst the people we love. It happens every year and when its over we start the long wait for the next one. We show the appreciation to all those we love and we spend time with them singing songs‚ enjoying a meal and generally having a jolly old time. This magical event is what Christians call the celebration of Christmas. On December 25‚ all Christians celebrate the birthday of their lord and savior Jesus Christ and spend
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------------------------------------------------- Electric generator In electricity generation‚ an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge (usually carried by electrons) to flow through an external electrical circuit. It is analogous to a water pump‚ which causes water to flow (but does not create water). The source of mechanical energy may be a reciprocating or turbine steam engine‚ water falling
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Green Chemistry Institute Atom Economy Page 1 American Chemical Society --------------------------------------------------------------------------------------------------------------------- CLEANING UP WITH ATOM ECONOMY By Kathryn E. Parent‚ k_parent@acs.org Introduction Cleaning up the environment and‚ more importantly‚ preventing pollution are important issues in today’s world. The theme for the 2002 National Chemistry Week is “Chemistry Keeps Us Clean.” While the chemical industry is traditionally
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