Question

د
Give one example to show that when
sulestances are
mixed it may result in
chemical change or a physical change
depending on the conditions.​

Answer 1

Answer:

When substances are mixed together, it can result either in a physical change or a chemical change. Example: If iron and sulphur are mixed, no chemical change occurs. But when the mixture is heated, it glows after some time and a black substance is formed which is different from iron and sulphur.