Question

list the changes you observe when following reactions take place

a)burning of magnesium ribbon
fast ​

Answer 1

Explanation:

When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. ... Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide

Answer 2

Answer:

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.

Explanation:

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