Question

Scrie ecuatiile reactiilor urmatoarelor transformari:
HCl--> H2
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H2-->CH4
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H2 --> PH3
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H2 -->Cu---> CuO---> CuCO3---> CuO---> CuCl2
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CuO---> CuSO4---> Cu(OH)2---->CuO

Answer 1

H2 + Cl2=2HCl

2H2 + C =CH4

6H2 + P4=4PH3

H2 + Cu O=Cu +H2O

2Cu + O2=2CuO

Cu O +MgCO3= CuCO3 + Mg O

CuCO3=CuO + C02

CuO +2HCl=CuCl2 + H2O

CuO + H2SO4=CuSO4 + H2O

CuSO4 +2 NaOH =Na2SO4 + Cu(OH)2

Cu(OH)2 =CuO +H2O