Удиви меня

Na2cr2o7 h2so4

Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4
Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4
Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4Na2cr2o7 h2so4