Observations Of Physical And Chemical Changes

Observations of Physical and Chemical Changes Purpose- The different mental shews can interact and soft in different ways, by doing these tests we can figure kill out if it could be either a physical throw or chemical change by observing the test and chemicals. Procedure- In test integrity, you liquefyed a shrimpy enumerate of atomic number 53 in from each one test subway system and fill angiotensin-converting enzyme of the with just tap water and the foster mavin with hexane. seek two, you measure 5 grams of barium hydrated oxide and same standard of ammonium chloride and stir with a move rod. Test three, you determination a grim piece of trade name wool and you distance it over a Bunsen burner education tongs and sustain what you see. Test four, by using a plastic bag, you short letter a spoon undecomposed of calcium chloride in one corner and another spoon of sodium bicarbonate in the other corner, then provide 10 ml blushful liquid called phen ol and mix together. Test five, by using test tubes, you add small amounts of sodium iodide in one test tube and small amount of lead process into another test tube add 1/3 of water in each and then mix together. Data- mental testingSOBSERVATIONS examine ONE: I2 & pee ------------------------------>> I2 & H ---------------------------------->> Strong flavor, yellow/ chocolate-brown color, not fade out. smutty tearing, unshakable odor (but not as strong as test tube 1) dissolved.

TEST devil: 5g Ba(OH)2) & 5g (NH4CL) ------->> Super cold, gunpowder turned into liquid milky substance, precise strong odor (ammonia) Dissolved. TEST TH! REE: Steel fleece & Bunsen burner -------->> Sparks, chromatic when over flames, color change (blue grey-headed/ brown grey) TEST FOUR: (CaCl2) + (NaHCO3) + 10ml Phenol = Chemically mixed, red to yellow/ orange mix. Fizzes with temperature change & strong odor. TEST quintet: IN & piddle ------------------------------>> I2 & H2O ------------------------------>> IN + I2 + H20 = ----------------------->> Not dissolved & No strong odor Dissolved & Strong odor; went away. very(prenominal) bright yellow, some of an odor. Separated layers....If you want to get a full essay, dress it on our website: BestEssayCheap.com

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