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The white ash formed by burning some magnesium ribbon in the gas decomposes on heating with water. a) Identify the white ash and the gas. Explain how these are obtained. b) What are the products of decomposition and how would you test it

The white ash formed by burning some magnesium ribbon in the gas decomposes on heating with water. 
a) Identify the white ash and the gas. Explain how these are obtained. 
b) What are the products of decomposition and how would you test it 
 

Grade:9

3 Answers

parthasarathy
35 Points
9 years ago
ash= magnesium oxide
on adding water gives  magnesium hydroxide
 
Ramreddy IIT Patna
askIITians Faculty 49 Points
9 years ago
There are other possibilities but the simplest answers:
1. The gas is nitrogen
2. The solid is magnesium nitride Mg3N2
3. The decomposition products are MgO and ammonia.
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Ramreddy IIT Patna
askIITians Faculty 49 Points
9 years ago
There are other possibilities but the simplest answers:
1. The gas is nitrogen
2. The solid is magnesium nitride Mg3N2
3. The decomposition products are MgO and ammonia.
….….….….….….….….….….….….….….….….….….….….….….….….….…..

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