SO3+2 NaOH--->Na2SO4+H2O
SO3 +2 Na+ +2 OH- --->2 Na+ +SO4 2- +H2O
SO3 +2 OH- --->SO4 2- +H2O
Na2O+H2O--->2 NaOH
Na2O+H2O--->2 Na+ +2 OH-
skroócny jonowy taki sam
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SO3+2 NaOH--->Na2SO4+H2O
SO3 +2 Na+ +2 OH- --->2 Na+ +SO4 2- +H2O
SO3 +2 OH- --->SO4 2- +H2O
Na2O+H2O--->2 NaOH
Na2O+H2O--->2 Na+ +2 OH-
skroócny jonowy taki sam