Tuesday, January 28, 2014

Types of hemical reactions - Practical Report-(Refer to word document for subscripts,tables and correct characters.)

Types Of Chemical Reactions Aim: To investigate, discuss and identify several unlike types of chemic chemical reactions by dint of a series of tribulations and observations. Decomposition of a change by heating implement:         Spatula         Bunsen          sort tube (x2)          pig bed (II) carbonate         Stopper and obstetrical delivery tube         Limewater modus operandi: 1.          bulge out a spatular of bull (II) carbonate (CuCO2) in a streak tube. 2.         Fit with stop up and delivery tube leading into another(prenominal) experiment tube, filled with limewater. 3.          light the test tube containing the Copper (II) carbonate and observe both changes that take place to it or the limewater. Results/observations: As the light docile Copper (II) carbonate heated, It saturnine black and created a hired gun which bubbled th rough the limewater leaving a milky white precipitate. intelligence: When the Copper (II) carbonate heated, enough zip was present to suffer a reaction in which it reacted with the touch group O in which the Copper (II) carbonate decomposed: 2CuCO2 + O2 2CO2 + 2CuO Copper (II) carbonate + atomic get 8 carbon paper dioxide + Copper oxide The Carbon dioxide then travelled through the delivery tube and through the limewater: CO2 + Ca(OH) 2 CaCO3 + H2O Carbon dioxide + Limewater (Calcium hydroxide) Calcium carbonate + Water This reaction leaves us with the calcium carbonate precipitate and attribute that Carbon dioxide was the gas that was released through the outgrowth reaction. From this reaction it is feasible to acquire that a reaction between a carbonate and oxygen (burning) results in carbon dioxide and a metal oxide. Metal(X) change + oxygen (and Heat) Carbon Dioxide + Metal(X) Oxide Decomposition of a carbonate with an acid Apparatus:        Â Â Spatular         Calcium ! carbonate         2mol L-1 Hydrochloric acid         Test tube (x2)         Limewater Procedure: 1.         Place a spatular of calcium carbonate into a test tube and add 2-3 cm of hydrochloric acid. 2.         Fit the first test tube... If you want to get a full essay, severalize it on our website: BestEssayCheap.com

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