Question

show that burning of magnesium ribbon is a chemical change through an experiment experiment

Answer 1

Hey
When we burn a magnesium ribbon in air it burns with a white dazzling colours.
When burnt some powder like substance falls from it which is solid magnesium oxide.
Since you. can never convert MgO into Mg again in any way possible therefore it's a chemical change.

Hope it helps :))

Answer 2

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AIM : To show that burning of magnesium ribbon is a chemical change.

MATERIAL REQUIRED : Magnesium wire , tongs , burner.

Procedure :

1. Take a strip of magnesium ribbon and hold it with the help of tongs.

2. Introduce it into the flame of the burner.

OBSERVATION :

Magnesium ribbon  burns with dazzling light and white substance is formed which is magnesium oxide. This happen due to following reaction :-

CHEMICAL REACTION :

2Mg ( s ) + O₂ ( g ) -------------->  2MgO ( s )

CONCLUSION :-

• Burning of magnesium in presence of oxygen to form magnesium oxide is a combination reaction and an exothermic process because heat and light are produced.