Question

Write one observation when
magnesium ribbon is
burnt in air.​

Answer 1

Answer:

magnesium ribbon should be cleaned before burning because it contains magnesium oxide when kept in air this is not required while burning magnesium ribbon so it should be cleaned before burning

Answer 2

Answer:

When magnesium ribbon is burnt in air, it combines with oxygen to form white powder magnesium oxide MgO with the release of heat and light. It forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product.