Question

Name the reaction when silver item turning black when left exposed Is their explain reaction name

Answer 1

Hey here is your answer

The name of the reaction is tarnishing of silver

Hope you got

Answer 2

1. combination reaction A combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions may be represented by equations of the following form: X + Y → XY. The combination of two or more elements and form one compound is called combination reaction.

2. displacement reaction
A single-displacement reaction, also known as a single-replacement reaction, is a reaction by which one element replaces an/other element in a compound. It can be represented generically as: A + B-C → A-C + B This will most often occur if A is more reactive than B, thus giving a more stable product.

Hope this will help you...