Physical & Chemical Properties

visible and Chemical Properties Pre Lab Questions (4pts. ) 1. What argon the learning goals of this experiment? The goals are to investigate the chemic properties of pure chemical substance and to investigate the forcible properties of pure substances. 2. Write two examples each of physical and chemical properties. Physical Color, Odor, hardness, density, melting point, boiling point Chemical- heat of combustion, reactivity, ph, 3. What happens if you heat a resolution of chemicals in test tube facing towards you?How would you avoid inhalation of chemical vapour during heating in a test tube? It could sound on face and burn you. The best way to avoid inhaling vapor is to either where a mast or dont breathe in a flash in the vapors while the substances is burning. 4. How would you take care of itching eyelids or body parts caused by the contamination of 6M HCl? Wash your eyes with chilliness water immediately and if get any worse call 911. view______10/28/12__________________ __ Name____Daniel Asonye _____________________ . Title Physical and Chemical Properties 2. Procedure (3pts. ) 1. The set-back thing that must be d angiotensin converting enzyme is to half fill one surface of 24-well plate with 6M HCL and half filled a second well of the 24-well plate with 6M NaOH. 2 The second thing to do is to place 4 elegants test tubes into wells of the 24 well plate. Than place a small amounts of the substances into the tube that needs to be tested in each of the quaternion micro test tube. 3 In the first tube, determine and immortalise food colour and odorThe next thing lights the burner and grab the test tube with the holder. following heat the consume by slowly moving it just in a higher place the flame. Watch the effect of the substance by the heat. Allow cooling in the lead storing. 4 For the second tube 1. Add enough cold water at least ? ab erupt the sample and stir with the magnetic pole and watch what happens. Light the burner and grasp the test tube with the holder and heat the sample by slowly moving the tube about the flame. Use the ? cm of rosy-cheeked and sacrilegious litmus test paper.Allow the solution to cool and stir with the rod and transfer a drop of the solution onto a piece of litmus paper. 5 For the third tube Just add a well-nigh pipet drops of HCL to the sample and stir. 6. Fourth test tube- just add a few piped drops of NaOH to the sample. Stir and record 7. Clean up all cardinal test tube and repeat steps 2 through 6. 3. entropy Collection Fill up the table as shown in number (12pts. ) Color Odor Effect of heat Cold H2O angry H2O Litmus Test Dilute HCL DiluteNaOH Mg silver nc Cu gold nc Dissolves quickly Dissolves slowly Slighty cloudy Blue-white color appears Red -none Zn silver none Starts boiling Mgo white none White precipate forms CuCO3 patriarchal gas-like smell Started dissolving Starts looking slightly cloudy Becomes a superficial darker Blue formed some whit e color while red didnt Boiling, white precipitate increase Neutralize the solution and is a chance clear Cu (NO)3 blue Gas-like smell Started dissolving and boiling A lighter blue is formed Becomes a little darker Blue-formed some redish color while red had no change Ultraviolent color is formed on the top of the solution A large substrate has been formed between the two colors. Violent on top and blue on imbue NaCl White none Started to dissolved A tad cloudy Becomes a little darker No response No reaction No reaction 4. Attach your moving picture showing your work on step 4d. The picture should also show the results as appears in the experiment. pic pic pic pic 5. Result Write the results of your litmus paper test (2pts. ) The cooper formed a white precipitate. The CuCo3 blue formed some white color while red didnt.The Cu(NO)3 blue-formed some reddish color while red did not. NaCl had no reaction. ________________________________________________________________________ _ ___________________________________________________ 6. Questions Answer the questions shortly as shown in page 110 (3pts. ) A. Yes I did. I saying heat of combustion in about every chemical I test today. B. The evidence I saw was mainly copper. It had the highest reactivity out of any substance I used. C. Reactivity of any substance with cooper and heat combustion of substrates. D. Physical, physical, physical, and chemical E. physical, chemical, physical, physical , physical , chemical F. I would re heat the solution to give me a physical change.