Question

identify 2 characteristics of chemical changes do we observe when a magnesium ribbon burns​

Answer 1

Answer:

when magnesium ribbon burns IT form magnesium oxide which is of white colour powder

Answer 2

Answer:

HEY

It is an irreversible change as after burning the ribbon cannot be unburnt

A new product is formed with new properties i.e.

MgO

The composition of magnesium changes

Heat energy is required for this chemical change

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