Ustal jakie konserwanty kryja sie pod symbolami .Podaj wzor i nazwe:
a)E220+H2OstrzalkaH2SO3
b)HCOOCH3+H2OstrzalkaE236+CH3OH
c)HCOOH+KstrzalkaE237+H2
d)H2CO3strzalkaE290+H2O
e)KOH+CH3COOHstrzalkaE261+H2O
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SO2 + H2O --------> H2SO3
HCOOCH3 + H2O ------> HCOOH + CH3OH
2HCOOH + 2K -------> 2HCOOK + H2
H2CO3 --------> CO2 + H2O
KOH + CH3COOH --------> CH3COOK + H2O
E220 --- SO2--tlenek siarki (IV)
E236 --- HCOOH--kwas mrówkowy
E237 --- HCOOK--mrówczan potasu
E290 --- CO2--tlenek węgla (IV)
E261 --- CH3COOK--octan potasu