Question

CuO-CuCI2-Cu(OH)2-Cu(NO3)2-Cu3(PO4)2

Answer 1

1)CuO+2HCl= CuCl₂ +H₂O
2)CuCl₂+ 2NaOH=Cu(OH)₂+ 2NaCl
3)Cu(OH)₂+ 2HNO₃= Cu(NO₃)₂+ 2H₂O
4)3Cu(NO₃)₂ +2Na₃PO₄= Cu₃(PO₄)₂+ 6NaNO₃

Answer 2

The chemicals listed are all copper compounds:

• CuO: copper oxide
• CuCl2: copper (II) chloride
• Cu(OH)2: copper (II) hydroxide
• Cu(NO3)2: copper (II) nitrate
• Cu3(PO4)2: copper (II) phosphate

Each compound has different properties and uses. For example:

• Copper oxide (CuO) is a black powder that can be used as a catalyst, in ceramics, and in the production of copper salts and pigments.
• Copper (II) chloride (CuCl2) is a yellow-brown solid that is used as a catalyst, in the production of copper, and in etching circuits in electronics.
• Copper (II) hydroxide (Cu(OH)2) is a blue solid that is used as a fungicide and as a catalyst in chemical reactions.
• Copper (II) nitrate (Cu(NO3)2) is a blue crystal that is used in electroplating, as a catalyst in organic reactions, and in the production of copper salts and pigments.
• Copper (II) phosphate (Cu3(PO4)2) is a green powder that is used in the production of fertilizers and as a pigment in ceramics and glass.

It's important to note that some of these compounds are toxic and should be handled with care. Always follow proper safety protocols when working with chemicals.