Balancing Chemical Equations Notes Blank by cio18038

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									             BALANCING CHEMICAL EQUATIONS

  I.    Chemical Equations
               A. Definition – shorthand of chem. reactants and products using
                  formal symbols
               B. Characteristics
                    1. _________________________ (left side of equation)
                            a. Definition - __________________________________
                                  i. Ex – eggs + oil + water + brownie mix
                                 ii. Ex – 2 + 2
                                iii. Ex – H + O
                    2. _________________________ (right side of equation)
                            a. Definition - __________________________________
                                   i. Ex – brownie’s
                                  ii. Ex – 4
                                 iii. Ex – HO
                    3. + = separates reactants or products
                    4.     = ‘yields’, separates reactants from products
                          a. same as a equals sign in math
                    5. use __________________ (# placed in front of chem.)
                    6. __________________________________________________________
                         __________________________________________________________
                    7. scientist determines that mass of reactants always equals
                       mass of products
                    8. Law of Conservation of Mass
                          a. Definition – mass is neither created nor destroyed, it
                              just changes form



Example Chemical Equation :

                   reactants        products
                 2H2 + O2            2H2O


       _______________              ________________    _____________


        2 eggs + oil + water + brownie mix     12 brownies

								
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