Heather Schnicker 26 October 2012 Experiment # 4 (Lab 3) Properties of Gases PURPOSE The purpose of this experiment was to investigate and identify the chemical properties of the gases tested. DATA Gas | FLAME REACTION | GLOWING SPLINT | LIMEWATER REACTION | BROMOTHYMOL BLUE REACTION | Hydrogen | NO REACTION | | | | Oxygen | | BURNED BRIGHTER | | | Hydrogen & Oxygen | QUICK FLAME BURST | | | | Carbon Dioxide | | PUT THE FIRE OUT | NO REACTION | TURNED
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A flame test is conducted when an element is burned and the flame produces a color different the starting flame color. When the coffee stirrer was put into the flame‚ the element’s atoms (from the solution of the stirrer) left the original level of energy. When the atoms fell back to ground level‚ they released photons in the form of colored flame. Using the flame test‚ unknown compounds can be identified when they are burned since each element has a specific color. (Douma‚ 2008). The color
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Properties and changes are used to describe matter. A property is a trait of matter‚ when that sample of matter is in a fixed state. There are two different types of properties: physical properties and chemical properties. A change is something that alters the properties of a substance. There are two types of changes: chemical changes and physical changes. A physical property is a property that can be observed without changing the makeup (or composition) of a substance. Some examples of a physical
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In this lab‚ we tested the effect of flame on different chemical solutions. In order to do this‚ we used a wooden stick soaked in a metal and nonmetal solution‚ hovered it over a bunsen burner‚ and recorded the color that the flame changed to. The seven solutions we tested were lithium chloride‚ strontium chloride‚ calcium chloride‚ sodium chloride‚ barium chloride‚ copper chloride‚ and potassium chloride. However‚ we had another four additional solutions‚ which had unknown chemical composition
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Lab 20: Flame Tests Purpose/Objective: The ground state is the normal electron configuration of atoms or ions in an element. When atoms or ions in ground state are heated to a higher temperature‚ some electrons absorb enough energy to move them to higher energy levels. This is known as the excited state. However‚ the excited configuration is unstable‚ and the electrons must return back to their positions in the lower energy level. As they return‚ the energy that was previously absorbed is now emitted
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Presented by: GAURAV ANAND 26th Oct‚ 2011 GAURAV ANAND 26th Oct‚ 2011 PRESENTED BY: SUDHANSHU SHEKHAR 17th Oct‚ 2011 ------------------------------------------------- ------------------------------------------------- INDEX: 1. SETTING/ PLOT 2. CHARACTERS 3. MAIN EVENTS IN CHRONOLOGICAL ORDER 4. BACKGROUND (HISTORICAL ASPECTS) 5. AUTHOR/ TITLE/ YEAR OF PUBLISHING 6. THESIS / VIEWPOINT 7. LANGUAGE/ STYLE 8. CONCLUSION & ANALYSIS 9. TITLE (JUSTIFICATION/
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Lab #6 Properties of Hydrates Purpose: The purpose of the “Properties of Hydrates” lab is to study hydrates‚ and be able to identify them. This lab also focuses on observing the reversibility of hydration reactions by hydrolysis‚ and also testing substances for efflorescence of deliquescence. Procedure: A. Identification 1. Place 0.5 grams of each compound (Nickel Chloride‚ Potassium Chloride‚ Sodium Tetraborate‚ Sucrose‚ Calcium Carbonate‚ and Barium Chloride) in a small dry test
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Identify legal and ethical requirements of property management to complete agency work CPPDSM4007A Assignment 2 STUDENT NAME Daniel Skrzypek OTEN NUMBER n855096 Please read the “Guide to completing and submitting assignments” before you begin this assignment. What you need to do To successfully complete this assignment you must answer the following questions to demonstrate your knowledge. The assignment will be granted a result of “Competent” if the learning
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The Justification of Private Property Property Law JURI 25066EL Ryan Waschulzik 0271075 March 4th 2015 Words: 1772 Pages: 8 The notion of property is one that has long preceded us‚ or anyone we know. We know that the earliest social theory of property originated in the works of Saint Thomas Aquinas who had said that humans have a natural right to the use of or ownership of an unspecified amount of property. He also said that the amount of property to which you are entitled‚ is based
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Flame Test Lab Your company has been contracted by Julius and Annette Benetti. They are worried about some abandoned‚ rusted barrels of chemicals that their daughter found while playing in the vacant lot behind their home. The barrels have begun to leak a colored liquid that flows through their property before emptying into a local sewer. The Benettis want your company to identify the compound in the liquid. Earlier work indicates that it is a dissolved metal compound. Many metals‚ such as
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