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| 1. |
12g of alkaline earth metal gives 14.8 g of it\'s nitride .Atmoic weight of metal is |
| Answer» let the metal be M with atmic wt. be xso 3M + N2 ---->M3N2 3x 3x+28\xa0so, 12/3x = 14.8/(3x+28)which in solving for x gives 40the metal is calcium and its nitride is Ca3N2 | |