Friday, November 15, 2013

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 diametrical types of chemic reactions by dint of a series of tribulations and observations. Decomposition of a change by heating weapon:         Spatula         Bunsen          bear witness tube (x2)          pig bed (II) carbonate         Stopper and lurch tube         Limewater performance: 1.          bulge out a spatular of bullshit (II) carbonate (CuCO2) in a try on tube. 2.         Fit with stopple and delivery tube leading into another(prenominal) running tube, filled with limewater. 3.          agitate the test tube containing the Copper (II) carbonate and observe either changes that take place to it or the limewater. Results/observations: As the light savory Copper (II) carbonate heated, It saturnine black and created a gas pedal which bubbled through the limewater leaving a milky white precipitate. handling: When the Copper (II) carbonate heated, enough zip was present to straggle a reaction in which it reacted with the touch atomic number 8 in which the Copper (II) carbonate decomposed: 2CuCO2 + O2 2CO2 + 2CuO Copper (II) carbonate + atomic add 8 vitamin C 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.
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From this reaction it is feasible to charm that a reaction between a carbonate and oxygen (burning) results in carbon dioxide and a metal oxide. Metal(X) change + atomic number 8 (and Heat) Carbon Dioxide + Metal(X) Oxide Decomposition of a carbonate with an acid Apparatus:         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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