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Synthesis Decomposition And Displacement Reaction Lab Report

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6.7, 6.8 Synthesis, Decomposition, and Displacement Reactions Kelly Mok SNC2DE-A Mr. Cox Partner: Nidhi S. Lab performed: September 18 & 19, 2014 Due: September 26, 2014 Purpose The purpose of this experiment is to observe and compare synthesis, decomposition, single displacement and double displacement reactions and the physical and chemical reactions that occur as a result. Hypothesis If any chemical is added or brought near another chemical, then a reaction will occur and physical and chemical changes will be seen. Procedure Procedure and Materials taken from Nelson Science Perspectives 10 pages 244 to 247 Material changes include: Glowing splint used in placed of limewater in Station 2 Magnesium …show more content…

When the copper is heated, the flame of the bunsen burner changed from blue to green. The colour of the copper metal changed from a shiny reddish-brown colour to a dull gray-brown colour. When the magnesium is heated, it changed from a dull gray metal to a pale white colour. b) 2Mg (s)+ O2 (g) ----> 2MgO (s) Magnesium + Oxygen ----> Magnesium Oxide 2Cu (s) + O2 (g)----> 2CuO (s) Copper + Oxygen ----> Copper Oxide c)Copper (II) Carbonate forms the molecular compound of Carbon Dioxide when heated. Copper oxide remains as the ionic compound. When copper (II) carbonate and oxygen are heated, there is an oxidation reaction that occurs. The copper ion bonds with one oxygen ion while the carbon atom bonds with the remaining two oxygen ions. d) CuCO3 (s)----> CuO (s)+ CO2 (g) Copper (II) Carbonate ---> Copper Oxide + Carbon Dioxide e)When a glowing splint is brought near the opening of hydrogen peroxide, it re-ignites which means that oxygen gas has been produced as hydrogen peroxide …show more content…

For Station 4 , the magnesium and zinc turnings blackened when introduced to Cu(NO3)2 . Copper (II) nitrate, zinc nitrate and magnesium nitrate all changed colour when sodium carbonate was added. b)Magnesium is most reactive (#1). Zinc is second most reactive (#2). Copper is the least reactive (#3). c) Copper (II) Nitrate is the most reactive (#1). Zinc Nitrate is second most reactive (#2). Magnesium Nitrate is the least reactive (#3). d)It is the in the opposite order. While the magnesium metal is the most reactive, magnesium nitrate is the least reactive. Copper metal is the least reactive but copper nitrate is most

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