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12th of April 2017
Chemistry
Q:

An element X is trivalent . write the balanced equation for the combustion of X in oxygen

Dimplegulati232 - ICSE - Class IX

Tuesday, April 11, 2017 at 20:22:PM

A:

Aluminium is trivalent (Al3+).

4Al   +  3O2  →   2Al2O3 

Wednesday, April 12, 2017 at 17:47:PM