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H2 SO4
H2 O
H2 O
H2
Na
ZnO
KOH
Ba(NO3 )2
Na2 SO4
Zn SO4
K2 SO4
Ba SO4
HNO3
+
+
+
+
+
+
+
+
=
=
=
=
2
2
2
2
лакмус
фенолфталеин
метиловый оранжевый
красный
синий
бесцветный
индикатор

блок 2 группа 1
Instructions | More on the Hexagons Approach

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