Chemistry, asked by mithileshpandey8126, 1 year ago

How black coating on silver coins occurs give chemical equations?

Answers

Answered by krish2333

On exposure to air, Silver articles form blackish layer on them because the layer of silver sulphide is formed due to the reaction of silver with hydrogen sulphide present in air.

Chemical equation:

2Ag + H2S → Ag2S + H2

Previous Question

Next Question

Similar questions

Physics, 6 months ago

Give two examples of components that are separated in an oil refinery. (a) Coke and Petrol (b) Petrol and Diesel (c) Coal and Kerosene (d) Coke and Bitumen...

English, 6 months ago

Identify the nouns in these sentences and classify them. 1. People should be more careful and stop using plastic. 2 The army has twenty battalions. Each battalion has fifty soldiers. 3. The legs of the table are made of iron, while the tabletop is made of wood. 4. Zaza, my golden retriever, gave birth to a litter of puppies. 5. The white snow covered the green lawn. 6. Lionel was upset when the...

World Languages, 6 months ago

give me 3 properties of beta particles ...

Science, 1 year ago

Why is some KOH placed in a small test tube in the flask with germinating seeds in the experiment to show demonstrate occurrence of respiration in germinating seeds?

English, 1 year ago

he was loved by his juniors . he was loved by his seniors [ combine with out using and, but , so]...

Biology, 1 year ago

explanation of nitrogen cycle alongwith diagram each and every process and stage of nitrogen cycle should be explained...

Physics, 1 year ago

under what condition is the displacemant of a body equal to the distance travelled by it?

Biology, 1 year ago

Write one feature which is common in arteries and veins.