C. in the reaction of copper and silver nitrate, a new substance appeared in the test tube. describe the physical appearance of the substance and identify its chemical formula

Answer :

Cu(s) + 2AgNO₃(aq) = Cu(NO₃)₂(aq) + 2Ag(s)

The solution of copper(II) nitrate and metallic silver formed in the reaction. 

Colourless solution becomes blue due to the formation of the copper (II) aquacomplex.

Cu²⁺ + 4H₂O = [Cu(H₂O)₄]²⁺
                            blue

During the reaction of copper and silver nitrate, a Copper nitrate is formed in the test tube by Displacement reaction. It is a Colourless solution becomes blue due to the formation of the copper (II) aquacomplex.

What is Displacement Reaction ?

A single-displacement reaction, also known as single replacement reaction or exchange reaction, is a chemical reaction in which one element is replaced by another in a compound.

Cu(s) + 2AgNO₃(aq) --> Cu(NO₃)₂(aq) + 2Ag(s)

The solution of copper(II) nitrate and metallic silver formed in the reaction.

Colourless solution of Cu(NO₃)becomes blue due to the formation of the copper (II) aquacomplex.

Cu²⁺ + 4H₂O = [Cu(H₂O)₄]²⁺

                           blue

Therefore, During the reaction of copper and silver nitrate, a Copper nitrate is formed in the test tube by Displacement reaction. It is a Colourless solution becomes blue due to the formation of the copper (II) aquacomplex.

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https://brainly.com/question/3664113

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