Classification Of Substances

SACE Stage 1 Chemistry – Experiment – Classification of veggie marrows objective lens: To examine the physical properties of a payoff of totalitys and to classify them into groups rule: 1. exam for conductivity in its pure state by having two electrodes in the substance that do not achieve and attend to whether the light bulb turns on. 2. Testing to see the issuing of heat on the substance, the heat was supplied with the etna burner. We heated each substance for two minutes to see if a transfer occurred. 3. Then we checked if its state was stird and trialed whether it conducted galvanizing energy in its changed form. This was done in the same style as testing its pure state. 4. Then we tested the substance to see if is fade out in pissing. Simply having near of the substance into a test tube and adding water and feel what happens next. 5. If it did dissolve we tested whether it conducted electricity w hen in a event with water. 6. Then finally, we tested if it was disintegrable in dichloromethane. Results: Name | construction and State |Cond. Of pure substance |Effect of Heat | break up point |Cond. Of molten substance | solubility in water |Cond.

Of substance in water |solvability in CH2Cl2 | |Iodine |I2 secure |NO |YES sublimation |113°C |NO |YES |NO |YES | |Naphthalene |C10H8 unhurt |NO |YES semiliquid |80.26°C |NO |NO |N/A |YES | |Ethanol |C2H5OH Liquid |NO |YES Vaporises |N/A |NO |Already liquid |N/A |Doesn’t admixture | |Wax |CXHY real |NO |YES Liquid |45°C |N O |NO |N/A |NO | | smoothen |SiO2 Solid |NO! |NO CHANGE |1713°C |N/A |NO |N/A |NO | | special K nitrate |KNO3 Solid |NO |YES Liquid |338°C |YES |YES |YES |NO | |Zinc oxide |ZNO2 Solid |NO |NO / colour change |1975°C |N/A |YES |NO |NO | | south |S Solid |NO |YES Liquid |113°C |NO |NO |N/A |NO | |Sodium chloride |NaCl Solid |NO |YES Liquid |801°C |YES |YES |YES |NO | |Sugar |C12H22O11 Solid |NO |YES Liquid |146°C |NO |YES |NO |NO | |N.B.:...If you want to get a safe essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper