Question

Completati ecuatiile si precizati tipul reactiilor chimice:
Zn+HCl ->
CaCO3+CH3COOH ->
Cu+S ->
Al+O2 ->
CuSO4+Mg ->
Ca (OH)2+FeCl3 ->
CaCO3 ->
Cu (OH)2 ->
Ca+Cl2 ->
Al+Fe2O3 ->
Na+S ->
CuO+H2 ->
CuSO4+KOH ->
DAU COROANA!

Answer 1

Zn+2HCl=> ZnCl2 + H2
CaCO3+2CH3COOH=> (CH3COO)2Ca+ H2O + CO2
2Cu+ S=> Cu2S
4Al+ 3O2=> 2Al2O3
CuSO4+Mg=> MgSO4+ Cu
3Ca(OH)2+2FeCl3 =>2Fe(OH)3+ 3CaCl2
CaCO3=>CaO+ CO2
2Cu(OH)2=> 2CuO+ 2H2O
Ca+Cl2 =>CaCl2
2Al+ Fe2O3 => Al2O3 +2Fe
4Na+S =>Na4S
2CuO+2H2O=>2Cu(OH)2
CuSO4 + 2KOH=> K2SO4 + Cu(OH)2