Hydrogen gas is formed when magnesium reacts with hydrochloric acid.
Answer:
yo no se nada
Explanation:
solo se que no se nada xd
Epsom salt, magnesium sulphate, or MgSO4.7H2O comes in different hydrates.
The heptahydrate (.7H2O) comes in as Epsom salt.
It readily loses one water of crystallization, or by gentle heating, to become the hexahydrate, (.6H2O).
When heated to 150 ° C, it further lose water of crystallization to the monohydrate (.H2O)
Finally, when heated to 200 ° C, it becomes anhydrous, i.e. a powder that has no more water of crystallization.
(ref. Wiki)