Chemical Bonding

Chemical Bonding, structure and Quantity Aim To investigating a range of step up which include metallic, covalent molecular, covalent giant and ionic giant Materials utilise and list of tool Google Bunsen burner hear tube Power supply Spatula pair of tongs Mats Method To meet the characteristic physical properties of the substances six tests were done. These were tests of appearance, warming point, needivity of impregnable, solvability in water, conductivity of solvent and hardness. running play 1: Appearance. This was to dismantle whether the substance was shiny, dull, with colour etc. riddle 2: dissolve point. Pieces of the solid were located in a test tube and heated, just about in tongs. These were heated slowly to start of with then to a greater consequence strongly. The substances were discover until they started to melt. It was been celebrated whether the substance melts at high or low temperature. judge 3: conductivity of solid. Elec trodes of the conductivity overlap were rigid on a fragment of the solid it was detect whether there was a current flow or not. discharge 4: Solubility in water. A small channel of solid was placed in a test tube. produce was added and the mixture was stirred. This was to note whether a clear firmness get to or not. Test 5: Conductivity of ascendent.

Where a solution was formed in test 4, electrodes of the conductivity circuit were placed in the solution, to test if there was a current flow. Test 6: Hardness. An attempt to crush the substance was done development a spatula. The observations were classified into waxy, soft, brittle, hard etc. All observations were noted in the results table. Results TABLE 1 ! Name of substanceAppearance Melting pointConductivity of solidSolubility in waterConductivity of solutionHardness SiliconShiny & SilverExtreme highSemi film directorinsolubleN/AVery hard CopperRust brownHigh Melting pointExtreme conductinsolubleN/Amalleable Paraffin waxwhitelowDont conduct insolateinsolubleN/A softy &...If you want to get a sufficient essay, order it on our website: OrderEssay.net

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