Observations of Chemical and Physical Changes Derrick Davis Lab partner: None Location: My house Date Performed 25 Feb 15; 1600 CHE111-CO2 Photo 1 (Photo of me properly wearing safety goggles holding the student information card) Abstract: In chemistry it is important to understand the difference between physical and chemical changes. The objective of this experiment was to perform tests using heat or chemical mediators and observe the results for any physical or chemical changes. Various
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Balancing chemical equations 1. Complete the following sentences‚ using the words or groups of words in the box below. You may use some words more than once. |• as small as possible |• decrease |• molecules |• quantities | |• balance |• different |• nature |• rearranging | |• bonds |• equal
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Name: Jeanne Yoo|Date: 07/15/13| Exp 1: Observations of Chemical Changes|Lab Section: 1411-76426| Data Tables: Part 1: |Chemicals|Well No.|Observations of the Reaction| A.|NaHCO3 + HCl|1 |clear bubbles formed| B.|HCl + BTB|2 |turned orange after BTB was added‚ transparent‚ acidic| C.|NH3 + BTB|3 |turned dark blue after BTB was added‚ opaque‚ basic| D.|HCl + blue dye| |blue dye was missing from kit| E.|Blue dye + NaOCl| |blue dye was missing from kit| | with the 1 drop of HCl| ||
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Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl 1A Bubbles appeared for 5 seconds. Now clear in color‚ no bubbles B. HCl + BTB 2A Turned from clear to yellow C. NH3 + BTB 3A Turned from clear to dark blue D. HCl + blue dye 4A Turned from clear to green E. Blue dye + NaOCl 5A Turned from blue to light blue with the 1 drop of HCl 6A Turned from blue->light blue->yellow->light yellow->clear‚ transparent F. NaOCl + KI 7A Turned from clear to Light yellow
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* * Yogi’s Minimum * Case 08-4 * * Background * * A public utility company‚ Big Bear Power‚ has signed a 10-year non-cancelable lease from Goliath Company for a combustion turbine. The lease agreement is signed on December 15‚ 2004 and Big Bear has the right to use the turbine as of January 1‚ 2005. * Annual lease payments are $1 million per year‚ payable ratably over 12 months at the beginning of each month‚ according to the lease agreement. The minimum rent
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H83 CEL – CHEMICAL ENGINEERING LABORATORY PROJECT TITLE: SOLID LIQUID EXTRACTION OF GANODERMA LUCIDUM NAME: WIJETUNGE MUDALIGE DINITHI ISHARA WIJETUNGE ID NO: 007118 SUPERVISOR: DR SIVAKUMAR MANICKAM GROUP MEMBERS: KOW NIEN WEI AAZRA OUMAYYAH PANKAN JASON HEW YIP SENG DATE: 30 APRIL 2012 H83 CEL Chemical Engineering Laboratory Solid Liquid Extraction of Ganoderma Lucidum Author: W.M.Dinithi Ishara Wijetunge I certify that: (i) Apart from the experimental results reported in the
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eight types of chemical reactions. These eight reactions are Decomposition‚ Composition‚ Acid/Base‚ Synthesis‚ Single-Replacement‚ Double-Replacement‚ Precipitation‚ and Redox. Though these eight could be referred to as the same due to them being chemical reactions. They are actually very different. An example of this difference is Decomposition and Synthesis. Decomposition is when a compound is broken into smaller chemical species while a Synthesis reaction is two or more chemical species combining
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trade influenced all the aspects of the white Americans and African Americans’ life in the 18th century because it became the significant social and economic phenomenon in the history of the country (Dramaturgy Packet 2015‚ 17-18). In her play The Liquid Plain‚ Naomi Wallace discussed the idea of the transatlantic slave trade from the personal perspective of several characters in a vivid metaphorical language (Wallace 2013‚ 54). Thus‚ the concept of “vastness” of the transatlantic slave trade is
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consuming and expensive * Consulting services are considered a bonus * Want things that make them more money so the more money the make the better it looks for their margins * Customer loyalty is huge in this business * Want a company that offers good service so our locations may a benefit for us Implications: * Cannot use price as a competitive advantage because we have competitors with deeper pockets * Cargill bid could drastically increase Adepts size an aloe them
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physical chemical properties essay Oakland Schools SCoPE Science Assessment Packet 7th Grade Unit 2 – Physical and Chemical Properties and Changes of Matter Assessment Packet Grade 7‚ Unit 2: Physical and Chemical Properties and Changes of Matter Overview This packet contains a set of assessment resources to be used with the Physical and Chemical Properties and Changes of Matter Unit of the 7th grade Scope Science Curriculum. A test blue print is
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