LAB REPORT

2/28/12

Chemical Reactions

1/24/12

Introduction- we will be doing and categorizing different chemical reactions; combination reaction, decomposition reactions, single-replacement reactions, double-replacement reactions, and combustion reactions.   <?xml:namespace prefix = o /> 

 Purpose- the purpose is to classify the chemical reactions we were told to do into to 5 categories.  We will be doing a couple chemical reactions, to observe them to see what chemical reactions are being shown.   

 Materials-   safety goggles, apron, 2 small test tubes, centigram balance, dropper pipet, 2 medium test tubes, test-tube rack, crucible tongs, gas burner, ring stand, utility, .1M copper (II) sulfate, CuSO4 iron fillings, FE .1M lead (II) nitrate, Pb (NO3)2, .1M potassium iodide, KI, .6M hydrochloric acid, HCl magnesium turning, Mg, 2 wood splints, book of matches, 3% Hydrogen peroxide, H2O2  

 Procedure- First, fill a test tube with copper II sulfate.  Then add about 2g of iron fillings and record observation after 5 minutes.  Next, put 2mL of lead II nitrate solution into a test tube.  Add 5-10 drops of potassium iodide and record the observation.  Next, fill a test tube half way with 6M hydrochloric acid.  Add several Mg turnings and observe.  Afterwards, add 2 mL of 3% hydrogen peroxide solution in a test tube.  Put it in a test tube holder and point it away from you. Observe the gas that comes out.   

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