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13.1
A - siarka
D - tlen
E - woda
G - oranż metylowy
13.2
C - cylinder do spalań
13.3
B - SO₂ + H₂O ----> H₂SO₃
13.4
A - pH < 7
Zad. 14
14.1
A - węglan sodu
D - chlorek wapnia
14.2
C - strąceniowa
II - Mg²⁺ + CO₃²⁻ ----> MgCO₃