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a fost răspuns

Completeaza spatiile libere:
Fe+....------->FeCl3
Hg+AgNO3------>HgNO3+
...+NaOH+Mg(OH)2+NaCl
Ca-----+O2-------->CaO----+H2O-------->Ca(OH)2

Răspuns :

Ella9
2Fe+3Cl2=2FeCl3
Hg+AgNO3=HgNO3+Ag
MgCl+2NaOH=Mg(OH)2+2NaCl
2Ca+O2=2CaO
CaO +H2O= Ca(OH)2