Question

Cu-cucl2-cu(oh)2-cuo-cu(no3)2

Answer 1

Cu+Cl2=CuCl2
CuCl2+2NaOH=Cu(OH)2+2NaCl
Cu(OH)2=CuO+H2O при нагревании
CuO+2HNO3=Cu(NO3)2+H2o

Answer 2

The reaction you've described seems to involve the transformation of copper (Cu) through several chemical reactions. Let me break it down step by step:

1. Cu + Cl2: Copper (Cu) reacts with chlorine gas (Cl2) to form copper chloride (CuCl2): Cu + Cl2 → CuCl2

2. CuCl2 + NaOH: Copper chloride (CuCl2) can react with sodium hydroxide (NaOH) to form copper hydroxide (Cu(OH)2): CuCl2 + 2NaOH → Cu(OH)2 + 2NaCl

3. Cu(OH)2 → CuO: Copper hydroxide (Cu(OH)2) can undergo a dehydration reaction to form copper oxide (CuO): Cu(OH)2 → CuO + H2O

4. CuO + HNO3: Copper oxide (CuO) can react with nitric acid (HNO3) to form copper nitrate (Cu(NO3)2): CuO + 2HNO3 → Cu(NO3)2 + H2O

So, the overall sequence of reactions is: Cu + Cl2 → CuCl2 CuCl2 + 2NaOH → Cu(OH)2 + 2NaCl Cu(OH)2 → CuO + H2O CuO + 2HNO3 → Cu(NO3)2 + H2O

This series of reactions shows the transformation of copper from its elemental form into copper nitrate via copper chloride, copper hydroxide, and copper oxide as intermediate compounds.