Question

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 1

Answer:

The new substance which has appeared in the test tube is silver (Ag).  

Solid silver that emerges from copper as a precipitate.

Explanation:

This is the reaction

Cu (s)  +  2AgNO₃ (aq) →  Cu(NO₃)₂ (aq)  +  2Ag (s) ↓

It is a redox type

(Cu → Cu²⁺  +  2e⁻) .1  OXIDATION

(Ag⁺  + 1e⁻  →  Ag) .2  REDUCTION

Cu  + 2Ag⁺  + 2e⁻  → Cu²⁺  +  2e⁻  + 2Ag