Friday, September 27, 2013

Lab Report: Physical and Chemical Changes

Purpose: To investigate the difference between physical and chemic changes in matter. Materials: Safety glasses 13 small raise tubes Test tube rack Test tube softener 2 100-mL beakers Funnel Watch glass Stirring rod Evaporating saucer Magnet Magnifying glass Crucible tongs Spatula Balance Meeker burner sidestep stand Iron ring Wire gauze Forceps payable south Iron filings sodium Bicarbonate Sodium Chloride peag Sand Magnesium palm Hydrochloric Acid Distilled water distort paper 9 disposable yellowish pinkes Procedure: 1. chase by and by 7 of the dishes with the names of the following products: mho, Iron, Sodium Bicarbonate, Sodium Chloride, Sugar, Sand, and Magnesium. self-assurance small samples of individually in the appropriate dishes. 2. Examine each sample with a magnifying glass and magnet and record your observations in the information table. 3. Put small samples of each substance in a test tube along with 3 mL of water to determine their solubility. 4. Mi x some of the Iron and Sulfur on a clean disposable dish and render wind the change with a magnifying glass and magnet. Record your observations in the data table. Save and label this mixture. 5. Mix some of the moxie and Sodium Chloride on a clean disposable dish and study the mixture with a magnifying glass and magnet.
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Then, place this mixture in a clean 100-mL beaker. Add 30 mL of pray water and stir. Prepare a filtration setup, filter, and record your observations. 6. spud 10 mL of the filtrate into an evaporating dish, prepare a passion setup, and gently heat until all of the liquid is gone. Examine the ba lance wheel in the evaporating dish and on t! he filter paper. 7. Using the crucible tongs, hold a dry piece of Magnesium ribbon in the flame. Quickly place the burning ribbon on the acquire glass. Compare the appearance of the ribbon before and afterward burning. 8. If you hope to get a full essay, order it on our website: OrderCustomPaper.com

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