1) CuSO4 + H2Oโ Cu+ O2 + H2SO4;
2) NaCl+H2Oโ H2 + Cl2 + NaOH.
a) 9 g/mol; b) 18 g/mol.
A) 1-a, 2-a
B) 1-a, 2-b
C) 1-b, 2-a
D) 1-b, 2-b
https://t.me/KIMYO0800
https://t.me/KIMYO0800
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