Question

1) Fe + CuSO4 = ? ------------> 2) ? + NH3(р-р изб.) = ? -------------> 3) ? + O2 ( изб),t = X - твёрдое при температуре 20 градусов вещество - ? CuSO4 + KOH +CH3CHO t = Y- бинарное медьсодержащее вещество - ?

Answer 1

1) Fe + CuSO4 = FeSO4 (?) + Cu;

2) FeSO4 + 2NH3*H2O = Fe(OH)2 (?) + (NH4)2SO4;

3) 4Fe(OH)2 + O2 = 2Fe2O3 (X) + 4H2O;

4) 2CuSO4 + 5KOH + H3CCHO = Cu2O (Y) + H3CCOOK + 2K2SO4 + 3H2O.

Answer 2

Chemical Reactions and Substances

1) The reaction between iron (Fe) and copper sulfate (CuSO4) results in the displacement of copper by iron, leading to the formation of iron sulfate and copper metal.

The balanced chemical equation for this reaction is: Fe + CuSO4 → FeSO4 + Cu.

This reaction is an example of a single displacement reaction, where a more reactive element displaces a less reactive element from its compound.

Source: [[1]]

2) When ammonia (NH3) is added in excess to a solution, it forms a complex with copper ions, resulting in the formation of a deep blue complex known as tetraamminecopper(II) complex.

The balanced chemical equation for this reaction is: Cu^2+ + 4NH3 → [Cu(NH3)4]^2+.

This complex is formed due to the coordination of ammonia molecules around the copper ion.

Source: [[2]]

3) When a substance reacts with oxygen (O2) to produce a solid at a temperature of 20 degrees Celsius, it could be various substances depending on the specific conditions and elements involved. Without further information, it is challenging to determine the exact substance formed.

Source: [[3]]

Additional Information

- When copper sulfate (CuSO4) reacts with potassium hydroxide (KOH) and acetaldehyde (CH3CHO), it forms a binary copper-containing substance. The specific compound formed in this reaction would depend on the stoichiometry and conditions of the reaction.

Feel free to ask if you have further questions or need more information on any of these chemical reactions!