Saturday, October 26, 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 divergent types of chemic receptions by dint of a series of tribulations and observations. Decomposition of a change by heating implement:         Spatula         Bunsen          mental testing tube (x2)          pig bed (II) carbonate         Stopper and lecture tube         Limewater use: 1.          bulge out a spatular of bull (II) carbonate (CuCO2) in a test tube. 2.         Fit with wad and delivery tube leading into another(prenominal) test tube, filled with limewater. 3.          cacoethes 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 gamey Copper (II) carbonate heated, It saturnine black and created a bumble which bubbled through the limewater leaving a milky white precipitate. reciprocation: When the Copper (II) carbonate heated, enough zip was present to suck a reaction in which it reacted with the touch oxygen in which the Copper (II) carbonate decomposed: 2CuCO2 + O2 2CO2 + 2CuO Copper (II) carbonate + atomic tally 8 degree Celsius dioxide + Copper oxide The Carbon dioxide then traveled 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 reacti! on it is feasible to congeal that a reaction between a carbonate and oxygen (burning) results in carbon dioxide and a metal oxide. Metal(X) change + group O (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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