Get premium membership and access revision papers with marking schemes, video lessons and live classes.
(a) State the observation made at the end of the experiment when a mixture of iron powder and sulphur is heated in a test tube.
(b) Write an equation for the reaction between the product in (a) above and dilute hydrochloric acid
(c) When a mixture of iron powder and sulphur is heated, it glows more brightly than that of iron fillings and sulphur. Explain this observation.