Question

On mixing iron filings, sulphur and sulphuric
acid
a. Iron sulphide is formed
b. Sulphur dioxide is formed
c. Hydrogen gas is released
d. Hydrogen sulphide is released​

Answer 1

Answer:

Example: The mixture of iron and sulphur does not form any new substance. There is not net release or absorption of energy. Example: When iron and sulphur particles are mixed, heat energy is neither given out nor absorbed. It is a temporary change and can be reversed by removing the cause of the change.