1.

Magnesium ribbon burn and dissolve water to its ash

Answer» Mg (OH)2
When we heat magnesium ribbon in air, it burns with a dazzling white flame and the ash formed is magnesium oxide. The reaction is. 2Mg +O2 gives 2MgO. When you dissolve this ash in water you get hydroxide of Mg, that is magnesium hydroxide. MgO + H2O gives Mg (OH)2
Mg(OH)2
When we burn magnesium ribbon in air, we get magnesium oxide. When we dissolve the ash in water we get magnesium hydroxide


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