Chemistry Practical: Activity Series of Metals Introduction: The chemical activity of a metal is directly related to its practical use. In this investigation you will investigate the chemical activity of metals with oxygen‚ water‚ acid and alkali‚ to rank metals in order of their activity. Aim: To observe the reactivity of metals in order to determine the activity series of metals. Risk Assessment: In this investigation‚ hydrochloric acid solution is used which is toxic by all routes of
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without metal. The metals we use in our houses are mostly for keeping them sturdy. Though there is one problem we have when it comes to metals. That problem is that they rust. Metals rust when they are in contact with oxygen‚ and water. They rust much faster when they are in contact with salt water‚ and acid rain. We chose to see what would happen to various metals when they contacted with salt water. When the electrons move around in the salt water‚ it causes the metals to rust. The metals we chose
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THE RULES AND REGULATIONS The following safety rules must be observed while performing any of the scheduled laboratory experiments in one of the Chemistry Laboratories. Students who are found in violation of the safety rules will be given a warning for the first offense‚ will be dismissed from the lab room for the second offense‚ and will be withdrawn from the class (lab as well as lecture) for the third offense. If a violation is observed at a particular lab table (such as spilled liquid - water
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Metals and Rusting Iron Alquero Rollon Title “ The Effect of Various Metal Activity (Zinc (Zn)‚ Magnesium (Mg)‚ and Copper (Cu)) in the Color of Rainwater and Amount of Rust in the Iron Nail “ Hypothesis If the type of metal that has the highest activity will be used ‚ then there will be the least amount of rust found in the nail and the color of the rainwater would be the lightest. Independent Variable • Types of metals used in wrapping Title: “ The Effect of Various Metal Activity (Zinc
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Are laboratory experiments useful? Laboratory experiments are easy to replicate and help to find how the Cause and effect of relationships can be established. Laboratory methods usually have High levels of control over extraneous variables. One of the major strengths of laboratory experiments is‚ control. The more variables you have control over‚ the easier it becomes to draw conclusions about the effect of the individual variable on the dependent variable. Laboratory experiments allow for high
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]LABORATORY MANAGEMENT ] EFFECTIVE COMMUNICATION INTRA AND EXTRA LABORATORY ASSIGNMENT 3 DATE: 24 APRIL 2012 Table Of Contents PAGE NUMBER Introduction 3 1. The communication process 4-5 2. Feedback 6 3. Types of Communication based on expression 6-7 4. Types of communication bases on flow 7 5. Internal vs external communication 8 6. What are the barriers to effective communication? 9-11 7. Elements of effective communication
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Comparison of “Hitcher” and “The Laboratory” Despite being written almost two centuries apart both ‘The laboratory’ and but Robert Browning and ‘Hitcher’ but Simon Armitage deal with themes of jealousy‚ resentment and violence as well as many other similarities and differences. ‘Hitcher’ is about a depressed man who is deeply angered and takes his frustration out on an innocent hitch hiker spontaneously. ‘The Laboratory’ is about a woman who‚ driven by jealousy‚ wants to poison her husband’s
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observe the flame tests of some alkali and alkaline earth metal ion 2. Define ground state and excited state of an atom. Ground state- normal configuration of the electrons about the atom or the ion of an element; stable particle electrons are at lowest possible energy level Excited state- when stable particles are heated to very high temperatures some of the electrons leave their ground state and become “excited”; these electrons move to higher energy levels 3. What is flame test? Why do
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Density of Metals Lab 1. Purpose The purpose of this lab was answered in 4 questions‚ and their answers are here shown. The density of the metals we used were 5g/cm3. The density of a metal piece does not depend on its size‚ it depends on the total mass and total volume. The most accurate way of determining density is dividing mass by volume. You can’t identify metals by their density. It can help you narrow the options down‚ but you can’t identify a metal by using only its density. 2. Question
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Ankit Shingala Dr. Campagnolo Chemistry H September 24‚ 2013 Lab on Density of Four Metals Conclusion In this lab we studied the densities of four different metals using a caliper‚ a digital scale‚ and a calculator. Three metals were pure elements like copper‚ iron‚ and aluminum. The fourth metal was an alloy which was brass. The purposes of this lab were to demonstrate that different metal elements have different densities‚ and that alloys have densities somewhere between those elements that
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