Glysdi Lin P. Martin Grade-V Bais City-Special Science Elem. School October‚11‚2013 Activity 2 I Problem: Identifying the products of chemical change. II Hypothesis: I think that the chemical change is an irreversible process. The wet iron filings by the next day it will turn into rusting material because it is exposed to the atmosphere. While the dry iron filings is not III Materials: The setup in the previous activity‚ small plate‚ dry iron filings. IV Procedure: 1. Place the
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Observations of Chemical Changes Purpose: The purpose of this experiment is to predict and examine chemical changes/reactions among common chemicals found in consumer products at a macroscopic level. Procedure: The procedure of this experiment was to carefully mix different chemicals together using the chemical filled pipettes and the 96-well plate and determining what chemical reactions occurred. Data Table: Observations of Chemical Changes Experiment 1: Observations of Chemical Reactions |
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Observation of Chemical Change Course: General College Chemistry Purpose This experiment examines the reactions of common chemical s contained in consumer products. The purpose is to observe the macroscopic changes that these chemicals undergo. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Procedure We do not have the ability to see with a naked eye individual atoms and molecules reacting during chemical changes
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Observations of Chemical Changes Observations from Procedures Well#/ Question Chemicals Reaction A NaHCO3 and HCl-CO2 Bubbles B HCl and BTB Turns Orange C NH3 and BTB Still blue- no change D HCl and blue dye Turns green E Blue dye and NaOCl Stays blue – no change F NaOCl and KI Turns pale orange/yellow G KI and Pb(NO3)2 Milky yellow solid H NaOH and phenolphthalein Turns bright pink I HCl and phenolphthalein Bubbles- cloudy J NaOH and AgNO3 Solid formed/ turned brown K AgNO3 and NH3 No change
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Energy‚ often in the state of heat‚ is involved in chemical reactions and phases changes. Changes in energy‚ can translate in temperature differentiations. In such a case‚ energy is transferred as heat. The quantity of heat exerted in a reaction referred to as (joules) can be identified through the following equation: Heat Exerted= (Mass of Sample) x (Specific Heat) x (Change in Temperature) q=msΔT Within a calorimeter is where the reactions within this lab take place. A calorimeter allows the
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guys’ in the process. The 1935 film G-Men changed that point of view by distorting the image of law enforcement making them look exciting and effective. Hoover quickly discovered that the distortion of the FBI through film was an effective way to achieve popularity in American society. Hoover supported the making of these films and manipulated the image of the FBI for propaganda before eventually providing a more realistic view in the 1945 film House on 92nd Street. G-Men were the driving force to manipulate
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My Personal Brand By: David W. Creglow Business Story Telling and Brand Development Instructor: Diane Sadler-Diaz Full Sail University January 13‚ 2013 The balance of thirty years of construction contracting‚ marketing and project management skills and experience places David W. Creglow in a unique position to apply these skills in the Entertainment Marketing industry from a standpoint that only comes with diversity. He wants to surround himself
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SAMPLING PROCEDURE FOR API AND BS&W Prepared by Mopu Lab. Technologist; Kumar 1. SAMPLING FOR BOTH API AND BS&W 2. Plastic bottles must not be used for sampling as there is a risk of a build-up of static charge and the container cannot be earthed to ground. Crude oil samples can only be sampled into earthed steel sampling containers. Earth leads must be used to reduce the potential for static ignition 3. Gas monitors should be used where hydrocarbon gas may be evolved.
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The Scientist who Played with Optics (June 17‚2013) References: Masters‚ B. (2009‚ October). Robert W. Wood: The Scientist who Played with Optics. Retrieved from http://www.osaopn.org/ Home/articles/volume_20/issue_10/features/Robert_w_wood_ the_scientist_who_played_with_opti/#.Ub1kA2Qayc0 Anonymous. (2013‚ March 10). Robert W. Wood. Retrived from http://en.wikipedia.org/wiki/Robert_W._Wood Robert William Woods was born in May 2‚ 1868 in Concord
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Santiago Canales Partner: Cody Patterson MR. G Physical and Chemical Changes lab Pre lab discussion 1. a- chemical change b- chemical change c- physical change d- chemical change e- physical change 2. Change in color‚ gas‚ light or smoke and heat. 3.Becuase if the temperature changes you can notice it better this way. 4. I will use goggles and cloves all the time‚ I also need to point dangerous materials away from other people and I should be specially cautious with hydrochloric
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