an element X is trivalent and write the balanced equation for the combustion of X in oxygen
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trivalent means it valency is 3, Let he element Al so ,4Al +302-2Al2O3
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Valency of element X is 3 since it is given that X is trivalent in nature.
A/Q
4X + 3O2 —> 2X2O3 .
A/Q
4X + 3O2 —> 2X2O3 .
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