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

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

Solid silver that emerges from copper as a precipitate.

Step-by-step 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