Question

Cu-cuo-cucl2-cu(oh)2-cuso4-crso4-crcl2-cr(oh)2-cr(oh)3-cr2o3-cr

Answer 1

2Cu + O2 = 2CuO

CuO + 2HCl = CuCl2 + H2O

CuCl2 + 2KOH = Cu(OH)2 + 2KCl

Cu(OH)2 + H2SO4 = CuSO4 + 2H2O

CuSO4 + Cr = Cu + CrSO4

CrSO4 + 2KCl = CrCl2 + K2SO4

CrCl2 + 2KOH = Cr(OH)2 + 2KCl

4Cr(OH)2 + O2 + 2H2O = 4Cr(OH)3

2Cr(OH)3 = Cr2O3 + 3H2O

Cr2O3 + 2Al = 2Cr + Al2O3

Answer 2

It seems like you've provided a series of chemical compounds and their formulas. Here's what each of them represents:

1. Cu - Copper (element)
2. CuCl2 - Copper(II) Chloride
3. Cu(OH)2 - Copper(II) Hydroxide
4. CuSO4 - Copper(II) Sulfate
5. CrSO4 - Chromium(II) Sulfate
6. CrCl2 - Chromium(II) Chloride
7. Cr(OH)2 - Chromium(II) Hydroxide
8. Cr(OH)3 - Chromium(III) Hydroxide
9. Cr2O3 - Chromium(III) Oxide

These are chemical compounds containing copper (Cu) and chromium (Cr) in various oxidation states and different combinations with other elements like chlorine (Cl), sulfur (S), and hydroxide (OH). If you have specific questions or need more information about any of these compounds or their reactions, please feel free to ask.