Question

a student burnt a metal and kept in the form of Ribbon. The ribbon burns with a Dazzling flame and a white powdered B is formed which is basic in nature. Identify A and B. write the balanced chemical equation for the reaction involved.

Answer 1

Answer:

A = magnesium metal ribbon

B = Magnesium oxide

Explanation:

Magnesium is metal with burns with a bright white flame under the oxygen atmosphere.After burning of magnesium metal magnesium oxide is formed which is when dissolved in water forms an alkaline solution.

$2Mg(s)+O_2\rightarrow 2MgO(s)$

A = magnesium metal ribbon

B = Magnesium oxide

Answer 2

Answer:

The metal (A) in the ribbon that burns with a dazzling flame is identified as Magnesium metal ribbon. On burning, it produces a white powder (B) that is identified as Magnesium oxide.

Balanced equation: $2Mg (s) + O_{2} = 2MgO (s)$

Explanation:

The metal (A) in the ribbon that burns with a dazzling flame is identified as Magnesium metal ribbon. On burning, it produces a white powder (B) that is identified as Magnesium oxide.

Balanced equation: $2Mg (s) + O_{2} = 2MgO (s)$

Magnesium metal ribbon is a light, silvery-white, moderately hard metallic element that in ribbon or powder form burns with a brilliant white flame. It is obtained from magnesite, dolomite, and bodies of salt water and is used in structural alloys, pyrotechnics, flash photography, and incendiary bombs.

Magnesium oxide is used as an antacid to relieve heartburn, sour stomach, or acid indigestion.

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