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Sunday, December 29, 2013

Lab Report: Physical and Chemical Changes

Purpose: To investigate the difference between physical and chemical substance changes in matter. Materials: Safety glasses 13 small adjudicate tubes Test tube rack Test tube softener 2 100-mL beakers Funnel Watch glass Stirring rod Evaporating beauty Magnet Magnifying glass Crucible tongs Spatula Balance Meeker burner sidestep stand Iron ring Wire gauze Forceps receivable south Iron filings sodium Bicarbonate Sodium Chloride gelt Sand Magnesium medal Hydrochloric Acid Distilled water drool paper 9 disposable dishfules Procedure: 1. chase aft(prenominal) 7 of the dishes with the names of the following products: reciprocal ohm, Iron, Sodium Bicarbonate, Sodium Chloride, Sugar, Sand, and Magnesium. way small samples of to each one 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 s olubility. 4. Mix some of the Iron and Sulfur on a clean disposable dish and she-bop wind the alloy with a magnifying glass and magnet. Record your observations in the data table. Save and label this mixture. 5. Mix some of the gritstone 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. sprout 10 mL of the filtrate into an evaporating dish, prepare a heat setup, and gently heat until all of the liq uid is gone. Examine the sleep in the evap! orating dish and on the filter paper. 7. Using the melting pot 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 subsequently burning. 8. If you hope to get a full essay, order it on our website: OrderCustomPaper.com

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