oxygen
a gas and metal
Hydrogen
A gas H2S evolves.
When iron sulfide reacts with dilute sulfuric acid, iron sulfate, hydrogen sulfide gas, and water are produced. The overall reaction can be represented as: FeS + H2SO4 -> FeSO4 + H2S + H2O
Ammonia gas in the air can discolor brass by forming a greenish layer called patina on its surface.
Hydrogen sulphide (H2S) is a gas at room temperature.
Hydrogen sulphide, H2S, is a colorless and poisonous flammable gas.
Yes.
When copper sulfide is heated in the air, it is oxidized to form copper oxide (CuO) and sulfur dioxide (SO2) gas.
colourless gas
Oxygen is the gas in the air that keeps a fire burning. It helps combustion by reacting with the fuel source to produce heat and light.
Iron sulphide slowly dissolves in acid giving Hydrogen sulphide gas and a dirty green solution along with a burning sulpher smell. FeS + 2HCl ---------> FeCl2 + H2S