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Exercise 4









                   a.  Write  down  other  examples  of  acid-base  indicators?

                   Include an explanation!
                   b. Answer the questions below correctly!

                         1. Look for some antacids and write down the reaction in
                           the gastric juice?
                      2. How does adding CO   to the oceans cause a decrease
                                                     2
                                                                                    2-
                          in the concentration of carbonate ions, CO   ?
                                                                                    3








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